Refrigerator Door Panel Assembly with Simplified Trim Coupling
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Solution Overview
Problem
Refrigerator door decoration panels often have complex structures with many parts, leading to increased production costs, defect rates, and reduced aesthetic appeal and durability.
Innovation Solution
A simplified structure for the refrigerator door with a decoration panel that includes a base with bending portions forming an installation groove, where the outer bending portion and side parts are hemmed together, and a holder with supporters for easy attachment and detachment, using iron plate material for both the door body and decoration panel, with trims and fixers for secure coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex structure with many parts is used for the decoration panel, then the attachment mechanism can be more secure, but the production cost increases and defect rates increase
Solution Approach 1:
The patent combines multiple structural elements into a single integrated holder component. The holder integrates the mounting structure, attachment mechanism, and positioning features into one piece, eliminating the need for separate brackets, screws, and alignment components while maintaining secure attachment capability.
Solution Approach 2:
The holder is designed as a multi-functional component that simultaneously provides structural support, attachment functionality, and positioning guidance. This single component performs multiple roles that would traditionally require several separate parts, reducing complexity while maintaining reliability.
2Reliability
If multiple parts are used in the decoration panel structure, then the attachment can be more secure, but the productivity decreases and costs increase
Solution Approach 1:
By merging multiple parts into a single holder component, the manufacturing process is simplified from assembling multiple pieces to producing one integrated part. This reduces production steps, eliminates assembly operations, and increases manufacturing efficiency while maintaining secure attachment functionality.
3Device complexity
If a simple structure is used for the decoration panel, then the production cost decreases, but the aesthetic sense and durability may be compromised
Solution Approach 1:
The patent applies local quality by concentrating structural complexity only where needed for durability and aesthetics, while keeping the overall structure simple. The holder features localized reinforcement at critical attachment points and optimized geometry in specific areas, rather than uniformly complex design throughout.
4Reliability
If many parts are used in the decoration panel, then the attachment mechanism can be more robust, but the defect rate increases
Solution Approach 1:
The integration of multiple parts into a single holder eliminates assembly errors, misalignment defects, and connection failures that occur when joining multiple components. The monolithic structure removes interfaces between parts, thereby eliminating a major source of manufacturing defects while maintaining robust attachment capability.
Data Source
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AI summary
Provided is a refrigerator comprising: a main body; a first door arranged to open or close an upper front side of the main body; and a second door arranged to open or close a lower front side of the main body, and including: a door body including an upper cap and a lower cap, a door panel detachably coupled to a front side of the door body, and including a panel body, an upper trim coupled to an upper portion of a rear side of the panel body, and a lower trim coupled to a lower portion of the rear side of the panel body, and a fixer, wherein the upper cap includes an upper cap projection protruding downward, the upper cap protrusion is inserted into the upper trim so that the upper trim is coupled to the upper cap, and the fixer is inserted into the lower cap and the lower trim in an upward direction so that the lower trim is coupled to the lower cap.