Insulated Container Edge Insulation Strategy for Thermal Shippers

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Solution Overview

Problem

There is a need for systems that can effectively maintain temperature-sensitive materials within a specific temperature range for an extended period, particularly during transportation, as existing thermal shippers often rely on expensive high-R-value insulating materials or less effective lower-R-value materials, requiring a cost-effective solution that balances thermal insulation and material costs.

Innovation Solution

A thermally insulated container system using a combination of insulating materials with different R-values, where the higher R-value material is strategically placed within the container and the lower R-value material is used at the edges or vice versa, depending on the positioning of phase-change materials relative to the product box, to optimize thermal insulation based on the arrangement of passive temperature-control members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-R-value insulating materials are used in the thermally insulated container, then thermal insulation performance is improved, but material cost increases

Engineering Contradiction:
Improvethermal insulation performanceVSAvoidmaterial cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies local quality by using different insulating materials with different R-values in different locations within the container. Specifically, higher R-value materials are placed in regions where thermal insulation is most critical (such as areas with greater distance from phase-change materials), while lower R-value materials are used in less critical areas. This spatial differentiation of material quality optimizes thermal insulation performance while reducing overall material costs compared to using high-R-value materials throughout the entire container.

Inventive Principle:
Principle #3Local quality

2Reliability

If thermally insulated container uses uniform insulating material throughout, then manufacturing simplicity is maintained, but thermal insulation performance is suboptimal

Engineering Contradiction:
Improvethermal insulation performanceVSAvoidcontainer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements local quality by strategically placing different insulating materials in different regions of the container based on thermal performance requirements. The container structure is designed to accommodate multiple insulating material types, with higher R-value materials positioned in critical thermal zones and lower R-value materials in less critical zones, achieving superior overall insulation performance while maintaining reasonable structural complexity.

Inventive Principle:
Principle #3Local quality

3Temperature

If phase-change material covers edges of product box, then temperature control at edges is improved, but insulating material distribution strategy changes

Engineering Contradiction:
Improveedge temperature controlVSAvoidinsulating material arrangement
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent addresses edge temperature control by considering the interaction between phase-change material placement and insulating material distribution. When phase-change materials are positioned to cover edges of the product box, the insulating material arrangement is adjusted accordingly, with higher R-value materials placed in regions farther from the phase-change materials and lower R-value materials near the edges where phase-change materials provide sufficient thermal regulation. This coordinated arrangement optimizes both edge temperature control and overall insulation efficiency.

Inventive Principle:
Principle #3Local quality

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 approach enhances thermal insulation performance by strategically distributing insulating materials based on the phase-change material arrangement, improving temperature maintenance for temperature-sensitive materials while reducing material costs, as demonstrated by the comparison of different container configurations.

Implementation Method 1

the at least one passive temperature-control member comprising at least one phase-change material

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 2

the at least one passive temperature-control member comprising at least one phase-change material

Methodology Applied
Scientific EffectLatent heat: Latent Heat

Implementation Method 3

the insulated container comprising a first insulating material and a second insulating material, wherein the first insulating material has a comparatively higher R-value, wherein the second insulating material has a comparatively lower R-value

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS11472625B2Method and system for maintaining temperature-sensitive materials within a desired temperature range for a period of time
Publication Date: 2022.10.18 COLD CHAIN TECH LLC
  • US11472625B2 patent drawing
  • US11472625B2 patent drawing
  • US11472625B2 patent drawing

AI summary

Method and system for maintaining temperature-sensitive materials. According to one embodiment, the method involves positioning temperature-sensitive materials within a product box and positioning phase-change material around the product box. If the edges of the product box where adjoining sides meet are covered by phase-change material, then the product box and the phase-change materials are loaded into a frame-and-panel-type insulated container in which an insulating material having a higher R-value is located along the container edges and an insulating material having a lower R-value is spaced away from the container edges. By contrast, if the edges of the product box are not covered by phase-change material, then the product box and the phase-change materials are loaded into a frame-and-panel-type insulated container in which an insulating material having a lower R-value is located along the container edges and an insulating material having a higher R-value is spaced away from the container edges.