Wearable Phase-Change Cooling Structure for Easy Reuse

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Solution Overview

Problem

Existing wearable temperature-reducing devices are complex in structure, difficult to wear, and have low reuse rates, lacking environmental friendliness.

Innovation Solution

A wearable temperature-reducing device with a flexible arcuate body containing a phase-change material and a heat-conducting layer, separated by an internal capsule, that absorbs or releases heat through phase changes without chemical reactions or energy consumption, featuring a simple design for easy use and environmental friendliness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If complex chemical reactions or energy-consuming mechanisms are used for temperature reduction, then temperature control effectiveness is improved, but device complexity and energy consumption increase

Engineering Contradiction:

Improvetemperature reduction effectivenessVSAvoidstructure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent applies phase change material (paraffin) that transitions between solid and liquid states at specific temperatures to absorb and release heat. This physical phase transition provides effective temperature control without requiring complex chemical reactions or external energy input, directly resolving the contradiction between temperature effectiveness and device complexity

Inventive Principle:

Principle #36Phase transitions

Solution Approach 2:

The patent replaces complex mechanical or chemical temperature control systems with a passive thermal management system based on phase change principles. The microcapsules containing phase change material automatically absorb and release heat through phase transitions, eliminating the need for active cooling mechanisms, motors, or chemical reaction systems

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If flexible and wearable design is implemented, then ease of wear is improved, but structural stability and heat conduction efficiency may deteriorate

Engineering Contradiction:

Improveease of wearVSAvoidheat conduction efficiency

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent uses a flexible fabric carrier as the base structure, allowing the device to conform to body contours and move with the wearer. This flexible shell maintains structural integrity while enabling comfortable wear, directly addressing the contradiction between flexibility and stability

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent introduces gel as a heat-conducting intermediary layer between the phase change material and the outer fabric. This gel mediator ensures efficient heat transfer from the body to the phase change material while maintaining the flexibility and comfort of the wearable device

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of substance

If reusable and environmentally friendly materials are used, then environmental friendliness is improved, but manufacturing precision and material performance may worsen

Engineering Contradiction:

Improveenvironmental friendlinessVSAvoidmaterial performance consistency

Core Design Contradiction:

Loss of substanceVSManufacturing precision

Solution Approach 1:

The patent employs composite material structures including microcapsules of phase change material embedded in a fabric carrier with gel heat-conducting layers. This composite approach combines the advantages of different materials (paraffin's high latent heat, fabric's flexibility, gel's thermal conductivity) to achieve both environmental friendliness and consistent performance

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent divides the phase change material into numerous microcapsules distributed throughout the fabric. This segmentation ensures uniform heat distribution and consistent thermal performance across the entire device, while the modular microcapsule structure simplifies manufacturing and material replacement

Inventive Principle:

Principle #1Segmentation

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 device provides effective temperature reduction by utilizing phase-change materials, ensuring ease of use, simplicity, and sustainability, while maintaining comfort and efficiency.

Implementation Method 1

applying the principle that a phase-change material will be subject to a phase change at a phase-change temperature to absorb or release heat

Methodology Applied

Scientific EffectPhase change: Phase Change

Implementation Method 2

the internal capsule is filled with a phase-change layer made from a phase-change material

Methodology Applied

Scientific EffectLatent heat: Latent Heat

Implementation Method 3

a heat-conducting layer located between the flexible outer wall and the internal capsule

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20260020981A1Wearable Temperature-Reducing Device

Publication Date: 2026.01.22 JIANGSU HUANYI IND CO LTD

AI summary

The present utility model provides a wearable temperature-reducing device, comprising an arcuate body, which comprises a flexible outer wall and a cavity enclosed by the flexible outer wall. The cavity comprises an internal capsule, a phase-change layer located in the internal capsule, and a heat-conducting layer located between the flexible outer wall and the internal capsule, and the arcuate body forms an enclosed space for wearing. The wearable temperature-reducing device of the present application is mainly intended to be worn by humans, and has the advantages of being easy to wear, simple in structure, environmentally friendly, etc.