Phase Change Material Durability Test via Centrifugal Rotation and Semiconductor Cooling

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Solution Overview

Problem

Existing durability test methods for phase change materials are inefficient due to slow test speeds and reduced accuracy, particularly in composite materials where segregation occurs, leading to decreased storage ability and phase temperature changes.

Innovation Solution

A durability test method and system that utilizes a solid-liquid combination test component with centrifugal rotation and temperature regulation semiconductor, employing a preset centrifugal rotation detection control scheme and temperature single-cycle regulation scheme to quickly change detection temperatures and analyze durability information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a temperature cycling box is used to perform durability test, then the temperature can be controlled accurately, but the cycling process time is too long and the test speed is slow

Engineering Contradiction:

Improvetemperature control accuracyVSAvoidtest speed

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces the conventional mechanical temperature cycling box with a semiconductor-based temperature control system. The semiconductor device enables rapid temperature changes and precise control, eliminating the slow heating/cooling cycles of traditional mechanical systems while maintaining accurate temperature regulation throughout the durability test.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the temperature control parameters by using semiconductor devices that can rapidly adjust temperature. This allows the system to achieve accurate temperature control without the lengthy cycling times associated with conventional methods, thereby improving test speed while maintaining measurement precision.

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If the temperature cycling time is extended to improve detection accuracy, then the durability detection accuracy improves, but the test time increases and efficiency decreases

Engineering Contradiction:

Improvedurability detection accuracyVSAvoidtest time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent substitutes the traditional mechanical temperature cycling approach with a semiconductor-based system that provides rapid and precise temperature control. This substitution enables the system to achieve accurate durability detection without requiring extended cycling times, thereby reducing test time while maintaining or improving detection accuracy.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The semiconductor-based temperature control system enables continuous and rapid temperature adjustments throughout the test process. This continuous action eliminates the idle waiting periods inherent in conventional cycling methods, allowing the durability test to proceed more efficiently while maintaining accurate detection results.

Inventive Principle:

Principle #20Continuity of useful action

3Quantity of substance

If composite phase change material is used, then the storage ability and phase temperature can be optimized, but material segregation and delamination occur due to different densities

Engineering Contradiction:

Improvestorage abilityVSAvoidmaterial uniformity

Core Design Contradiction:

Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The patent applies centrifugal force during the durability test, which changes the physical state and distribution of the composite phase change material. This centrifugal action helps maintain material uniformity by preventing segregation based on density differences, while still allowing the composite material to exhibit its optimized storage ability and phase temperature characteristics.

Inventive Principle:

Principle #35Parameter changes

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 the speed and accuracy of durability detection by generating centrifugal force through rotation and precise temperature control, improving the detection result of phase change material durability.

Implementation Method 1

the solid-liquid combination test component rotates the material to be tested and generates a centrifugal force by executing the centrifugal rotation detection control scheme

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

The detection temperature of the material to be tested is quickly changed by controlling the temperature regulation semiconductor

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12117409B1Durability test method, device and system of phase change material

Publication Date: 2024.10.15 SHENZHEN UNIV

AI summary

A durability test method a phase change material includes: placing a material to be tested in a solid-liquid combination test component for detecting the material to be tested, and executing a preset centrifugal rotation detection control scheme; performing cycling control on a temperature regulation semiconductor provided on the solid-liquid combination test component according to a preset temperature single-cycle regulation scheme; obtaining a temperature detection information of the material to be tested; and analyzing and processing the temperature detection information of the material to be tested to generate a durability information of the material to be tested according to a preset durability analysis method of the material to be tested.