Refrigerator Door Single-Board Main Case to Reduce Assembly Complexity

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Solution Overview

Problem

Refrigerator door decoration panels often require complex structures and multiple 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 uses a single metal board formed by press bending, featuring an installation groove and a holder system for easy attachment and detachment, along with a magnetic coupling for stability, reducing the number of parts and enhancing firmness and aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex multi-part structure is used for the door body, then the aesthetic sense and durability may be improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:
ImprovedurabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The door body is constructed by bending and joining a single metal board to form an integrated main case with rear case, eliminating the need for multiple separate structural components. This merging of parts reduces assembly complexity while maintaining structural integrity and durability through the continuous metal construction.

Inventive Principle:
Principle #5Merging (Combining)

2Shape

If multiple parts are used in the door body construction, then the aesthetic sense may be improved, but the productivity decreases and defect rates increase

Engineering Contradiction:
Improveaesthetic senseVSAvoidmanufacturing efficiency
Core Design Contradiction:
ShapeVSProductivity

Solution Approach 1:

The metal board is divided into functional zones through bending portions that create distinct regions (front part, side parts, rear case) while remaining part of a single continuous piece. This segmentation allows aesthetic design variations without requiring separate components, maintaining productivity by working with one integrated piece rather than assembling multiple parts.

Inventive Principle:
Principle #1Segmentation

3Productivity

If a simplified single metal board structure is used, then the productivity increases and costs decrease, but the firmness and durability may be reduced

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidfirmness
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The metal board is bent into curved and angled configurations rather than remaining flat, creating a three-dimensional form with inherent structural strength. The bending portions form rigid joints and corners that distribute mechanical loads effectively, maintaining firmness and durability while using a single continuous piece of metal that is easier and cheaper to manufacture.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

This solution increases productivity, lowers defect rates, and saves costs while providing a more durable and aesthetically pleasing refrigerator door with easy design changes.

Implementation Method 1

the main case is formed by bending a single metal board

Methodology Applied
Scientific EffectPress bending: Deformation

Implementation Method 2

along with a magnetic coupling for stability

Methodology Applied
Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentUS11047613B1Refrigerator
Publication Date: 2021.06.29 SAMSUNG ELECTRONICS CO LTD
  • US11047613B1 patent drawing
  • US11047613B1 patent drawing
  • US11047613B1 patent drawing

AI summary

Provided is a refrigerator including a main body including a storeroom, a door body arranged to open or close the storeroom, a decoration panel coupled to a front side of the door body, and a holder mounted on the front side of the door body to be coupled to the decoration panel. The door body includes a rear case defining a rear side of the door body, and a main case defining front and sides of the door body. The main case includes a front part defining the front side of the door body and having an installation groove in which to install the holder, side parts defining sides of the door body, and a rear coupler coupled to the rear case. The main case is formed by bending a single metal board.