Nanofiber Heat Insulation Sheet for Mobile Terminals

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional heat insulation films for mobile terminals are complex to manufacture, costly, and inefficient in minimizing heat transfer from internal batteries to electronic components, often causing malfunctions due to their metal film layers and potential heat conduction issues.

Innovation Solution

A heat insulation sheet is manufactured using a nanofiber web formed by electrospinning, with a polymer material having low thermal conductivity and inorganic particles, creating a three-dimensional network structure with fine pores to enhance heat absorption and insulation performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional heat insulation films with metal film layers are used, then heat insulation performance is improved, but manufacturing complexity and cost increase

Engineering Contradiction:

Improveheat insulation performanceVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the metal film layer from the heat insulation film structure. The patent specifically addresses the problem of metal film layers causing heat conduction issues and manufacturing complexity by removing this component entirely, replacing it with a polymer-based multi-layer structure that achieves heat insulation without the harmful effects of metal films.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces expensive metal film layers with more economical polymer materials. The patent describes using polymer films with adhesive layers that can be manufactured more cost-effectively than metal-based insulation films, while still achieving the required heat insulation performance for mobile terminals.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If conventional heat insulation films are used, then heat insulation is provided, but heat transfer to electronic components occurs causing malfunctions

Engineering Contradiction:

Improveheat insulation performanceVSAvoidheat transfer to components

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention applies different material properties to different layers of the heat insulation film. The patent describes a multi-layer structure where each layer has specific properties: polymer films for insulation, adhesive layers for bonding, and specific thermal conductivity characteristics. This localized differentiation of material qualities enables effective heat blocking while maintaining proper adhesion and thermal management at different interfaces.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The invention uses composite material structures combining polymer films and adhesive layers in specific configurations. The patent describes composite structures where polymer materials with low thermal conductivity are combined with adhesive layers, creating a multi-functional composite that provides both heat insulation and proper bonding to prevent heat transfer to electronic components.

Inventive Principle:

Principle #40Composite materials

3Reliability

If heat insulation film is added to block battery heat, then component malfunctions are prevented, but device thickness increases

Engineering Contradiction:

Improvecomponent protection from heatVSAvoiddevice thickness

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The invention uses thin film structures to provide heat insulation without significant thickness increase. The patent describes employing polymer films and adhesive layers in thin configurations that can be integrated into the mobile terminal's existing structure, providing heat insulation functionality while maintaining the device's slim profile and not significantly increasing overall thickness.

Inventive Principle:

Principle #30Flexible shells and thin films

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 nanofiber web structure improves heat insulation performance by capturing and accumulating heat effectively, reducing heat transfer to electronic components while maintaining a thin, lightweight design, thus preventing component malfunctions and enhancing consumer satisfaction.

Implementation Method 1

The nanofiber web structure improves heat insulation performance by capturing and accumulating heat effectively

Methodology Applied

Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 2

a heat insulation sheet using a nanofiber web... with inorganic particles, creating a three-dimensional network structure with fine pores to enhance heat absorption and insulation performance

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

A heat insulation sheet is manufactured using a nanofiber web formed by electrospinning

Methodology Applied

Scientific EffectElectrospinning: Electrohydrodynamics

Data Source

PatentUS10004152B2Heat insulation sheet and method of manufacturing same

Publication Date: 2018.06.19 AMOGREENTECH CO LTD

AI summary

A heat insulation sheet includes: a heat insulation layer formed as a nanofiber web form having a plurality of pores by electrospinning a polymeric material; and an adhesion layer laminated on one or both sides of the heat insulation layer and formed as a nanofiber web form by electrospinning an adhesion material, to thereby be made thin and have a plurality of fine pores, and to thus improve heat insulation performance.