Active Thermal Clothing with Thread Tension Control

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Solution Overview

Problem

Performance clothing fails to maintain thermal comfort across varying weather and body conditions due to its passive design, requiring manual adjustments that are often inadequate or delayed.

Innovation Solution

Embedding sensors and control units in clothing to monitor conditions and predict heat production, allowing for active adjustment of breathability and insulation by controlling threads through electrical or mechanical means, such as tension adjustment of warp and weft, to optimize airflow and loft.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If passive design is used, then device complexity is reduced, but thermal comfort adaptability deteriorates

Engineering Contradiction:
Improvethermal comfort adaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clothing system monitors its own thermal state through embedded sensors and automatically adjusts insulation and breathability through actuators, eliminating the need for manual user intervention while maintaining thermal comfort across varying conditions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically changes physical parameters of the clothing including insulation thickness, breathability, and loft by controlling thread tension through actuators, allowing adaptive response to thermal conditions without permanent structural modification

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If manual adjustments are made, then ease of operation is improved, but response speed deteriorates

Engineering Contradiction:
Improvemanual adjustment easeVSAvoidresponse speed
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

Sensors continuously monitor thermal conditions and feed this information to control units that automatically adjust clothing properties, creating a closed-loop system that responds immediately to thermal changes without requiring manual detection or adjustment by the wearer

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Manual mechanical adjustments are replaced with automated electromechanical actuators controlled by electronic systems, enabling faster and more precise adjustments to thermal conditions without requiring physical manipulation by the user

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Temperature

If active control elements are embedded, then thermal comfort is improved, but weight increases

Engineering Contradiction:
Improvethermal comfortVSAvoidclothing weight
Core Design Contradiction:
TemperatureVSWeight of moving object

Solution Approach 1:

Sensors and actuators are embedded only in specific strategic locations within the clothing where they are most needed for thermal regulation, rather than uniformly distributing components throughout the entire garment, minimizing unnecessary weight addition

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The clothing integrates multiple functional materials including phase change materials for thermal regulation, conductive materials for sensing, and actuator materials that can change physical properties, creating a composite structure that provides active thermal control with minimized weight

Inventive Principle:
Principle #40Composite materials

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

Provides variable insulation and breathability, ensuring thermal comfort by dynamically responding to changes in body and environmental conditions, enhancing wearer comfort and performance.

Implementation Method 1

tension adjustment of warp and weft

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentUS10219556B2Actively controlled performance clothing
Publication Date: 2019.03.05 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US10219556B2 patent drawing
  • US10219556B2 patent drawing
  • US10219556B2 patent drawing

AI summary

A method includes embedding clothing with at least one sensor and at least one control unit; a power unit powering on the at least one sensor and the at least one control unit; the at least one sensor monitoring a sensed condition; the at least one control unit conducting a heat prediction based on the sensed condition; and the at least one control unit controlling threads within the clothing based on the heat prediction to actively adjust properties of the clothing.