Refrigerator Door Water Pipe Fixing Slits for Uniform Foaming

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Solution Overview

Problem

Refrigerator doors face issues with uneven injection of foaming liquid due to obstructed flow by the location fixing means for water pipes, leading to dew formation on the surface as the insulation layer hardens.

Innovation Solution

A door design featuring a water pipe with moving slits in a fixing member that allows even injection of foaming liquid through slots, preventing dew formation by ensuring unobstructed flow and proper insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a location fixing means for the water pipe is installed in the door, then the water pipe location is fixed, but the foaming liquid flow is shut off and injection becomes uneven

Engineering Contradiction:

Improvewater pipe location stabilityVSAvoidfoaming liquid injection uniformity

Core Design Contradiction:

Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The fixing member incorporates moving slits that allow foaming liquid to pass through while maintaining water pipe positioning. These slits function as porous pathways, enabling the foaming liquid to flow uniformly around the water pipe without being completely blocked by the fixing structure.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The fixing member is designed with multiple moving slits distributed across its structure, segmenting the foaming liquid flow path into multiple channels. This segmentation allows the foaming liquid to be injected evenly throughout the door cavity while the fixing member maintains water pipe position stability.

Inventive Principle:

Principle #1Segmentation

2Manufacturing precision

If the foaming liquid is not evenly injected into the door, then the insulation layer formation is compromised, but the surface of the door becomes dewed

Engineering Contradiction:

Improveinsulation layer formation qualityVSAvoiddew formation on door surface

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The moving slits in the fixing member create porous flow paths that distribute foaming liquid uniformly across the door cavity. This even distribution ensures complete and uniform insulation layer formation, eliminating cold spots that would otherwise cause dew condensation on the door surface.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The fixing member with moving slits promotes homogeneous distribution of foaming liquid throughout the door cavity. By ensuring uniform injection, the resulting insulation layer has consistent thermal properties across the entire door surface, preventing localized cold areas that lead to dew formation.

Inventive Principle:

Principle #33Homogeneity

3Stability of the object's composition

If the fixing means is stuck in the door, then the water pipe is secured, but the temperature difference causes the door surface to dew

Engineering Contradiction:

Improvefixing means position stabilityVSAvoiddew formation due to temperature difference

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The moving slits create porous pathways that allow foaming liquid to flow around and through the fixing member. This ensures that the insulation material completely surrounds the water pipe and filling area, eliminating thermal bridges and temperature differences that cause dew formation on the door surface.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The moving slits act as an intermediary structure between the fixing member and the foaming liquid. They allow the foaming liquid to penetrate and surround the fixing member, ensuring uniform insulation coverage that eliminates temperature differentials and prevents dew formation while maintaining fixing stability.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enables even distribution of the foaming liquid for effective insulation and prevents dew formation on the door surface, enhancing the refrigerator's performance and user experience.

Implementation Method 1

a fixing member fixing the location of the water pipe and having a multitude of moving slits through which foaming liquid flows

Methodology Applied

Scientific EffectFluid flow through slots:

Implementation Method 2

the foaming liquid for forming an insulation layer to be injected into the door evenly

Methodology Applied

Scientific EffectFoaming liquid hardening: Phase Change

Data Source

PatentUS7836720B2Door for refrigerator having a fixing member for a water pipe

Publication Date: 2010.11.23 LG ELECTRONICS INC

AI summary

Disclosed related to a door for a refrigerator may include an outer door forming the front exterior; a cap decoration formed at the upper and lower sides of the outer door; a water pipe drawn into the door through the cap decoration and through which water flows; and a fixing member on which a depression part fixing the water pipe is formed.