Heating Pad Fabric with Embedded Conductive Wire
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Solution Overview
Problem
Existing cold-weather gloves lack effective and efficient heating solutions that provide consistent warmth while being durable and washable, especially for cyclists and motorcyclists who require both thermal insulation and mechanical protection.
Innovation Solution
A glove design incorporating a heating pad made of pre-oxidized polyacrylonitrile and p-aramid staple fibers with integrated conductive wires, a temperature measuring device, and an electronic module that adjusts heat output based on hand movement, powered by a rechargeable battery, ensuring efficient heat distribution and energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating device is added to gloves to provide warmth in cold weather, then thermal insulation is improved, but device complexity and energy consumption increase
Solution Approach 1:
The heating elements are integrated directly into the glove fabric layers, merging the heating function with the structural layers of the glove. This combination eliminates separate heating components and reduces overall device complexity while maintaining effective hand warming.
Solution Approach 2:
The outer protective layer serves multiple functions: mechanical protection, water resistance, and as a structural carrier for the heating elements and electronic components. This multi-functionality reduces the need for additional separate components, thereby reducing device complexity.
2Temperature
If heating elements are integrated into the glove to provide consistent warmth, then thermal comfort is improved, but durability and washability deteriorate
Solution Approach 1:
The heating elements are embedded within and merged with the fabric layers rather than being surface-mounted. This integration protects the electrical components during washing and improves durability while maintaining consistent heat distribution through the fabric matrix.
Solution Approach 2:
The use of flexible, thin-film heating elements integrated into the fabric allows the glove to maintain its flexibility and washability. The thin-film construction prevents cracking during washing cycles while maintaining thermal conductivity for consistent heat distribution.
3Temperature
If conductive wires are installed on the heating pad to distribute heat, then thermal efficiency is improved, but mechanical durability worsens due to wire vulnerability
Solution Approach 1:
The conductive wires are merged with the fabric structure through embedding and bonding techniques, protecting them from mechanical damage while maintaining their electrical conductivity for efficient heat distribution across the heating pad.
Solution Approach 2:
The conductive wires are enclosed within flexible protective layers or bonded to the fabric in a way that provides mechanical protection while maintaining flexibility. This prevents wire breakage during glove movement and washing while preserving thermal conductivity.
4Use of energy by moving object
If a temperature measuring device and electronic module are added to control heat output, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The temperature measuring device and electronic module create a self-regulating system that automatically adjusts heating output based on detected temperature conditions. This eliminates the need for manual control and optimizes energy consumption without requiring complex user interaction or external control systems.
Solution Approach 2:
The temperature measuring device provides feedback to the electronic module, which adjusts the heating element output accordingly. This closed-loop feedback system optimizes energy efficiency by maintaining appropriate temperature levels while minimizing unnecessary energy consumption.
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 glove provides significant and consistent hand warming with reduced energy consumption, maintaining comfort and mechanical protection while being washable and compliant with safety standards for motorcycle riders.
Implementation Method 1
a heating pad (14) which comprises a fabric of staple fibers of pre-oxidized polyacrylonitrile and p-aramid and at least one conductive wire extending from the electronic module (30) over at least part of either the inner surface (14a) or outer surface (14b) of the heating pad
Implementation Method 2
a temperature measuring device (13) located on the inner surface (15a) of the second fabric (15)
Implementation Method 3
a battery (32) located in a pocket on the inner surface (18) of the outer protective layer (12) in the upper section (10) of the glove
Implementation Method 4
a heating pad (14) which comprises a fabric of staple fibers of pre-oxidized polyacrylonitrile and p-aramid
Data Source
AI summary
A glove for heating a hand comprises an upper section and a lower section wherein the upper section comprises in order a first outer protective layer comprising a first fabric or first leather skin, a heating pad, a second fabric, a temperature measuring device located on the inner surface of the second fabric, an electronic module located on the outer surface of the outer protective layer, wherein the heating pad comprises a fabric of staple fibers of pre-oxidized polyacrylonitrile and p-aramid and at least one conductive wire extending from the electronic module over at least part of the outer surface of the heating pad, the conductive wire being held in place on the inner surface of the heating pad by a fixing means. and the lower section comprises a second outer protective layer comprising a third fabric of continuous filament or staple fibers or a second leather skin.