Flexible Heating Sheets for Thin Heated Clothing

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Solution Overview

Problem

Conventional clothing that provides heating is often thick and heavy, compromising comfort and mobility, and lacks effective warmth retention, especially in thinner designs.

Innovation Solution

A heated clothing system comprising flexible heating sheets strategically placed on the clothing main body, with a power supply line and temperature sensors, allowing for balanced heat distribution and adjustable power control, including wireless charging and temperature monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional clothings increase thickness and add down feather to improve warmth retention, then warmth retention effect is improved, but clothings become thicker and heavier, compromising comfort and mobility

Engineering Contradiction:

Improvewarmth retention effectVSAvoidweight of clothing

Core Design Contradiction:

TemperatureVSWeight of stationary object

Solution Approach 1:

The patent changes the thermal insulation parameter from thick down feathers to thin flexible heating sheets with controlled heat output. The heating sheets maintain warmth through active heating rather than passive insulation, allowing thin clothing design while achieving effective warmth retention.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses flexible heating sheets as thin film structures that can be integrated into clothing without adding significant thickness or weight. These thin films generate heat directly at the contact point, providing warmth retention while maintaining clothing flexibility and comfort.

Inventive Principle:

Principle #30Flexible shells and thin films

2Ease of operation

If conventional heating clothings are designed to be thinner for comfort, then comfort and mobility are improved, but warmth retention effect deteriorates

Engineering Contradiction:

Improvecomfort and mobilityVSAvoidwarmth retention effect

Core Design Contradiction:

Ease of operationVSTemperature

Solution Approach 1:

The patent replaces the mechanical insulation system (thick down feathers) with an electrical heating system (flexible heating sheets powered by power supply line). This substitution allows thin clothing design while maintaining warmth retention through active electrical heating rather than passive mechanical insulation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the warmth retention mechanism from passive thermal insulation to active controlled heating. The flexible heating sheets can be activated to provide heat on demand, ensuring effective warmth retention in thin clothing designs that would otherwise be insufficient for cold conditions.

Inventive Principle:

Principle #35Parameter changes

3Temperature

If multiple flexible heating sheets are distributed on the clothing main body for balanced heat distribution, then warmth retention effect is improved, but device complexity increases

Engineering Contradiction:

Improveheat distribution uniformityVSAvoidnumber of heating sheets and connections

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent divides the heating system into multiple segmented flexible heating sheets distributed at different locations on the clothing main body. Each heating sheet is independently connected to the power supply line, allowing balanced heat distribution across different body regions while maintaining modular simplicity in the overall system architecture.

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 system provides enhanced warmth retention and comfort by distributing heat evenly across the body, avoiding bulkiness and foreign body sensations, while ensuring safe temperature levels and efficient power management.

Implementation Method 1

The plurality of the flexible heating sheets are disposed at intervals on the clothing main body... The power supply line is electrically connected to each of the plurality of the flexible heating sheets to supply power to each of the plurality of the flexible heating sheets

Methodology Applied

Scientific EffectResistive heating: Joule Heating

Implementation Method 2

the front side includes a heat insulation layer, the rear side includes a first heat conduction layer and a second heat conduction layer

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

the rear side includes a first heat conduction layer and a second heat conduction layer, and one of the plurality of flexible heating sheets is disposed between the first heat conduction layer and the second heat conduction layer

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12041698B1Heated clothing and control method of heated clothing

Publication Date: 2024.07.16 ZHANG HAIZHEN

AI summary

A heated clothing and a control method of the heated clothing are provided. The heated clothing includes a clothing main body, a plurality of flexible heating sheets, and a power supply line. The clothing main body includes a front portion and a rear portion, the front portion is disposed opposite to the rear portion. The plurality of the flexible heating sheets are disposed at intervals on the clothing main body, a first part of the plurality of the flexible heating sheets are disposed at the front portion, and a second part of the plurality of the flexible heating sheets are disposed at the rear portion, and each of the plurality of the flexible heating sheets is bendable. The power supply line is electrically connected to each of the plurality of the flexible heating sheets to supply power to each of the plurality of the flexible heating sheets.