Refrigerator door with replaceable door panel

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Solution Overview

Problem

Current refrigerator designs face challenges in accommodating user preferences for long-term aesthetic adjustments and suffer from high replacement costs when the door panel is damaged during transportation or use.

Innovation Solution

A refrigerator door with a replaceable door panel, featuring a foam door body and a detachable front panel with limiting members and a frame with a hook, which limits the front panel's displacement in multiple directions, enhancing strength and facilitating easy replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the front panel is detachably connected to the foam door body, then the ease of replacement is improved, but the strength and stability of the connection deteriorates

Engineering Contradiction:
Improveease of replacementVSAvoidstrength of connection
Core Design Contradiction:
Ease of repairVSStrength

Solution Approach 1:

The door panel assembly is segmented into the front panel and the frame, which can be separated from each other. The front panel is detachably connected to the foam door body through the frame, allowing easy replacement of the front panel while maintaining structural integrity through the frame's connection mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The frame is pre-assembled with the front panel before attachment to the foam door body. The limiting members are pre-positioned on the foam door body to guide and constrain the frame during assembly, ensuring proper alignment and secure connection before final attachment.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If limiting members are added to restrict panel displacement, then the strength and stability are improved, but the device complexity increases

Engineering Contradiction:
Improvestability of panel connectionVSAvoidcomplexity of limiting mechanism
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The limiting function is extracted as separate limiting members (first and second limiting members) that are disposed on the foam door body. These limiting members independently constrain displacement in different directions, providing stable connection without requiring a complex integrated limiting mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The frame serves multiple functions: it connects the front panel to the foam door body, provides structural support, and works in conjunction with the limiting members to constrain panel displacement. This multi-functionality reduces the need for additional separate components, thereby limiting device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the whole door body is replaced when the door panel is broken, then the strength and reliability are improved, but the loss of substance and cost increase

Engineering Contradiction:
Improvereliability of door assemblyVSAvoidloss of material
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The front panel is extracted as a separate replaceable component from the door assembly. When the front panel is damaged, only the panel itself needs to be replaced rather than the entire door body, reducing material loss and replacement cost while maintaining the reliability of the overall door assembly through the intact frame and foam door body.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The front panel is designed as a disposable or replaceable component that can be discarded when damaged. The frame and foam door body are recovered and retained, allowing the front panel to be replaced while preserving the majority of the door assembly materials.

Inventive Principle:
Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution significantly improves the strength of the refrigerator door by limiting panel displacement in multiple directions, effectively addressing the issues of external force impact during transportation and reducing replacement costs.

Implementation Method 1

the magnetic member and the frame magnetically attract each other in a front-rear direction perpendicular to the front panel

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

the elastic portion extends from an opening of the stopping groove towards rearward the stopping groove, and the elastic portion elastically pushes and resists against the insertion plate portion in the first direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12292227B2Refrigerator door with replaceable door panel
Publication Date: 2025.05.06 CHONGQING HAIER REFRIGERATION ELECTRIC APPLIANCE CO LTD
  • US12292227B2 patent drawing
  • US12292227B2 patent drawing
  • US12292227B2 patent drawing

AI summary

The present invention provides a refrigerator door with a replaceable door panel, comprising: a foam door body, and a front panel detachably connected to the foam door body; a first limiting member and a second limiting member are disposed on a front side of the foam door body; a frame is sandwiched between the front panel and the foam door body, the frame is attached to a rear side of the front panel, a hook is disposed on the frame, and the hook has an insertion plate portion; wherein when the front panel is assembled on the front side of the foam door body, the first limiting member, in cooperation with the insertion plate portion, limits a displacement of the front panel in a first direction; the second limiting member, in cooperation of the frame, limits a displacement of the front panel in a second direction.