Refrigerator Door Panel Trim Assembly for Secure Easy Swapping

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Solution Overview

Problem

Refrigerators face challenges in easily changing door designs and preventing the edge of a door panel from separating from the door body during assembly or disassembly.

Innovation Solution

The design incorporates a door system with a rotatable door body, a panel body, and trim components that include grooves, protrusions, and cut-out portions for secure coupling and easy detachment, along with a buffer member to absorb impacts and prevent edge separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the door panel is fixed to the door body using traditional methods, then the door structure is stable, but the edge of the door panel may separate from the door body during assembly or disassembly

Engineering Contradiction:
Improvedoor panel attachment stabilityVSAvoidassembly and disassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The door assembly is divided into separate components: door body, door panel, and trim. The trim acts as an intermediary component that segments the attachment function, providing both structural stability and ease of assembly/disassembly through its groove-protrusion coupling mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The trim serves as an intermediary component between the door panel and door body. It includes grooves that receive protrusions from the door body, creating a mediated connection that prevents direct attachment issues while enabling easy assembly and disassembly

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the door design is made customizable, then design flexibility is improved, but the device complexity increases

Engineering Contradiction:
Improvedoor design flexibilityVSAvoiddoor structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The door system is segmented into interchangeable components (door body, door panel, trim) that can be independently designed and configured. This segmentation allows different panel designs to be easily swapped while maintaining the same basic door structure, providing design flexibility without proportionally increasing overall complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The trim component serves multiple functions: it provides structural attachment through groove-protrusion coupling, prevents edge separation, and enables design customization. This multi-functionality reduces the need for additional specialized components, maintaining structural simplicity while enabling design versatility

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

3Reliability

If the trim is securely coupled to the door body, then the door panel attachment reliability is improved, but the ease of disassembly is reduced

Engineering Contradiction:
Improvetrim attachment reliabilityVSAvoiddisassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The groove-protrusion coupling mechanism provides dynamic attachment characteristics: during normal operation, the fit is tight and secure providing reliability, but during assembly and disassembly, the same mechanism allows controlled movement and easy separation through the interlocking geometry

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11293687B2Refrigerator and home appliance
Publication Date: 2022.04.05 SAMSUNG ELECTRONICS CO LTD
  • US11293687B2 patent drawing
  • US11293687B2 patent drawing
  • US11293687B2 patent drawing

AI summary

A refrigerator including a main body forming a storage compartment, and a door configured to open and close the storage compartment. The door includes a door body rotatably coupled to the main body and including an insulator therein, a panel body positioned in a front of the door body, a first trim disposed at a first edge of the panel body and configured to be coupled to the door body while being rotated with respect to the door body, and a second trim disposed at a second edge opposite to the first edge of the panel body and configured to be coupled to the door body when the first trim is coupled to the door body.