Refrigerator Door Handle Assembly to Reduce Coupling Complexity
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Solution Overview
Problem
Conventional refrigerators face challenges in convenient assembly of door handles, distinguishing between inner and outer door handles, and efficient insulation between double doors, as well as the ability to open the outer door independently of the inner door.
Innovation Solution
The design incorporates a reduced number of coupling and fixing members for the door handle, allows intuitive differentiation between inner and outer door handles through grip depth, and features an insulating partition wall that can be uniformly filled with material to seal between upper and lower doors, enabling independent operation of the outer door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple coupling members and fixing members are used for the door handle, then the door handle can be securely fixed to the door, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple coupling members and fixing members into a single integrated door handle assembly. The door handle is designed as one piece that includes both coupling functionality (to attach to the door) and fixing functionality (to remain securely attached), eliminating the need for separate coupling members and fixing members while maintaining secure fixation.
Solution Approach 2:
The door handle is designed to perform multiple functions simultaneously: it serves as both the coupling element (connecting the handle to the door) and the fixing element (securing the handle in place). This multi-functional design allows a single component to replace what would traditionally require multiple separate parts, simplifying assembly while ensuring reliable fixation.
2Ease of manufacture
If the inner door handle and outer door handle have the same design, then manufacturing is simplified, but users cannot intuitively distinguish between them
Solution Approach 1:
The patent introduces asymmetric design elements to differentiate between the inner door handle and outer door handle. Specifically, the grip portions have different depths or positions relative to the door surface, creating a tactile difference that allows users to intuitively distinguish which handle operates which door. This asymmetric differentiation is achieved through simple geometric variations rather than completely different designs, maintaining manufacturing simplicity while improving user experience.
3Adaptability or versatility
If the insulating partition wall is assembled separately from the main body, then assembly flexibility is improved, but insulation efficiency may be compromised
Solution Approach 1:
The patent divides the refrigerator into separable modules: the insulating partition wall is assembled separately from the main body and then coupled together. This segmentation allows for flexible assembly and disassembly while maintaining insulation efficiency through proper sealing and coupling mechanisms that ensure thermal continuity across the joint interfaces.
Data Source
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AI summary
Disclosed herein is a refrigerator in which the structure of a door is improved. The refrigerator includes a main body having a storage compartment, a door rotatably coupled to the main body to open or close the storage compartment and having a door frame, a coupling member coupled to the door frame, and a door handle coupled with the coupling member in a sliding manner.