Inflatable Wall Material for Cold Storage

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Solution Overview

Problem

Conventional cold storage houses have poor heat-insulation effects, are difficult to fold and transport, and lack portability due to high yield force and large folded size, restricting their mobility and land usage efficiency.

Innovation Solution

An inflatable wall material with a multilayer structure comprising a thermal insulation layer sandwiched between air-tight metal layers, barrier layers, a buffer layer, and a protective layer, utilizing materials like hollow three-dimensional crimp elastic cotton and aluminum-titanium alloy for improved thermal insulation and mechanical properties, allowing for efficient inflation and folding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional hollow semi-ellipsoidal integral structure is used, then the cold storage house can be folded and stored, but the heat-insulation effect is not ideal and the yield force is large making it difficult to fold manually

Engineering Contradiction:
Improvefolding capabilityVSAvoidheat-insulation effect
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent uses a composite wall structure consisting of multiple layers including waterproof non-breathable fabric, breathable fabric, and thermal insulation material (such as polyurethane foam or glass wool). This composite structure improves heat-insulation effect while maintaining the folding capability of the overall system, resolving the contradiction between ease of manufacture and reliability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent employs flexible waterproof non-breathable fabric and breathable fabric as outer and inner layers that can be folded and stored. These flexible films maintain structural integrity during folding while the thermal insulation material between them ensures heat-insulation performance, thus resolving the contradiction between folding capability and heat-insulation effect.

Inventive Principle:
Principle #30Flexible shells and thin films

2Strength

If the cold storage house is made with sufficient structural strength, then it can support itself after inflation, but the yield force increases making manual folding difficult and the folded size becomes excessively large

Engineering Contradiction:
Improvestructural firmnessVSAvoidfolding ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent divides the wall structure into multiple functional layers (waterproof layer, breathable layer, insulation layer) that can be folded independently. This segmentation allows the structure to maintain strength when inflated while reducing the force required for folding and decreasing the folded size, resolving the contradiction between structural firmness and folding ease.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses flexible fabrics that can dynamically transition between inflated and folded states. The waterproof non-breathable fabric and breathable fabric are designed to be flexible yet strong, allowing easy manual folding when deflated while providing sufficient structural support when inflated, thus resolving the contradiction between strength and folding ease.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If conventional civil construction type is used, then the structure is stable, but the construction period is long and land resources are occupied

Engineering Contradiction:
Improvestructural stabilityVSAvoidconstruction speed
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent divides the cold storage house into modular wall panels that can be independently manufactured and then quickly assembled on-site. This segmentation enables rapid construction while maintaining structural stability through standardized connection methods, resolving the contradiction between structural stability and construction speed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses flexible waterproof and breathable fabrics as the primary structural elements, replacing traditional rigid construction materials. These flexible films can be quickly deployed and inflated to form stable structures, dramatically reducing construction time while maintaining structural integrity, thus resolving the contradiction between structural stability and construction speed.

Inventive Principle:
Principle #30Flexible shells and thin films

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 provides excellent heat-insulation and mechanical properties, enabling rapid construction and efficient storage of cold storage houses with improved portability and reduced land occupation, while maintaining structural integrity and thermal efficiency.

Implementation Method 1

a thermal insulation layer, wherein a first metal layer, a barrier layer, a buffer layer, a protective layer, and a second metal layer are arranged on two sides of the thermal insulation layer in sequence from inside to outside

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

both the two barrier layers on the two sides of the thermal insulation layer adopt air-tight materials. The two barrier layers and the first metal layers on the two sides of the thermal insulation layer constitute an inflatable air-tight space

Methodology Applied
Scientific EffectAir-tight sealing:

Implementation Method 3

the thermal insulation layer employs hollow three-dimensional crimp elastic cotton, which has a heat-insulation effect and plays the role of supporting

Methodology Applied
Scientific EffectPorosity: Porosity

Data Source

PatentUS10047519B2Inflatable wall material, cold storage house using the same, and air-conditioned storehouse using the same
Publication Date: 2018.08.14 TIANJIN JIESHENG DONGHUI FRESH PRESERVATION TECH
  • US10047519B2 patent drawing
  • US10047519B2 patent drawing
  • US10047519B2 patent drawing

AI summary

An inflatable wall material, including: a thermal insulation layer, a first metal layer, a barrier layer, a buffer layer, a protective layer, and a second metal layer. The first metal layer, the barrier layer, the buffer layer, the protective layer, and the second metal layer are arranged on two sides of the thermal insulation layer in sequence from the inside to the outside. The two barrier layers on the two sides of the thermal insulation layer employ air-tight materials. The two barrier layers and the first metal layers on the two sides of the thermal insulation layer constitute an inflatable air-tight space. The thermal insulation layer is positioned in the air-tight space.