Modular Insulated PCM Containers for On-Demand Cold Chain Assembly

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Solution Overview

Problem

The high cost of maintaining an inventory of passively cooled shipping and transport containers that can provide various combinations of payload, target temperature, duration of thermal control, size, and weight is prohibitive for users, limiting customization and flexibility.

Innovation Solution

A modular system of thermally insulated containers comprising differently sized sleeves of thermal insulation and phase change material, allowing for the assembly of various thermally insulated and thermal controlled containers, including single and multi-layered configurations, to achieve desired temperature control and payload sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a full inventory of pre-assembled containers with various configurations is maintained, then users can immediately obtain containers with desired payload, temperature, duration, size and weight combinations, but the cost of maintaining such inventory becomes prohibitive

Engineering Contradiction:
ImproveImmediate availability of customized containersVSAvoidInventory cost
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The container system is divided into separate modular components: container bodies, insulation layers, and phase change material sleeves. These segments can be independently stored and assembled on-demand, eliminating the need to maintain complete pre-assembled containers for every possible configuration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The phase change material sleeves are designed to nest within the container bodies, and multiple containers can be nested within each other when not in use. This nesting arrangement maximizes storage efficiency and minimizes the space required to store the modular components.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If multiple pre-assembled container configurations are maintained for different payload and temperature requirements, then users can find suitable containers for various needs, but the complexity and cost of inventory management increases substantially

Engineering Contradiction:
ImproveContainer configuration varietyVSAvoidInventory management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The modular components are designed with standardized interfaces and dimensions that allow them to be used across multiple container configurations. The same insulation layers and phase change material sleeves can be assembled into different container sizes and specifications, enabling a limited set of components to serve multiple functions.

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

Solution Approach 2:

The system transitions from a static inventory of pre-assembled containers to a dynamic assembly system where containers are configured on-demand based on specific requirements. This dynamic approach allows the same base components to be reconfigured for different applications, reducing inventory complexity.

Inventive Principle:
Principle #15Dynamics

3Duration of action of stationary object

If larger containers with more insulation and phase change material are used, then thermal control duration and effectiveness improve, but the weight and size of the container increase

Engineering Contradiction:
ImproveThermal control durationVSAvoidContainer weight
Core Design Contradiction:
Duration of action of stationary objectVSWeight of moving object

Solution Approach 1:

Instead of providing excessive insulation and phase change material in all containers, the modular system allows users to select the minimum necessary amount of each component based on specific thermal control requirements. This partial action approach optimizes the balance between thermal performance and weight.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The modular design enables different levels of insulation and phase change material to be applied to different container sizes and thermal requirements. Each container can be locally optimized with the appropriate amount of thermal control components rather than using a uniform over-engineered approach across all containers.

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

Enables users to customize and assemble containers on-site, reducing costs while maintaining effective thermal control for thermally labile goods, such as medical supplies and biologics, by utilizing a modular system of nested sleeves of thermal insulation and phase change material.

Implementation Method 1

panels containing a phase change material

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 2

phase change material... capable of providing the various combinations of available payload, target temperature, guaranteed duration of thermal control

Methodology Applied
Scientific EffectLatent heat: Latent Heat

Implementation Method 3

surrounding the payload retention chamber of the container with panels containing a phase change material

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP2512954B1Cascading series of thermally insulated passive temperature controlled containers
Publication Date: 2016.11.23 MINNESOTA THERMAL SCIENCE LLC
  • EP2512954B1 patent drawingFigure 1A
  • EP2512954B1 patent drawingFigure 1B
  • EP2512954B1 patent drawingFigure 1C

AI summary

A modular collection of components from which a variety of thermally insulated and thermal controlled containers (100, 200, 300) can be assembled. The collection includes at least two differently sized sleeves of thermal insulation (120, 220, 320), and at least two differently sized sleeves (110, 210, 310) of phase change material (115, 215, 315) that are nestable with one another to form various thermally insulated and thermally controlled containers (100, 200, 300) with various combinations of available payload, target temperature, guaranteed duration of thermal control, size of container and weight of container.