Wound Conductive Thread Fabric for Electromagnetic Shielding
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Solution Overview
Problem
Existing fabrics fail to effectively shield against electromagnetic radiation and magnetic fields, which can pose health risks due to long-term exposure.
Innovation Solution
A fabric structure featuring a network of electrically conducting, wound threads that act as a filter, preventing electromagnetic radiation and magnetic fields from passing through by generating electrical currents that cancel out these fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a network structure of electrically conducting threads is used to block electromagnetic radiation, then shielding effectiveness is improved, but the fabric temperature increases due to electromagnetic energy conversion
Solution Approach 1:
The patent converts the harmful electromagnetic radiation energy into useful thermal energy. The electrically conducting threads absorb electromagnetic radiation and transform it into heat through electrical resistance, which then warms the wearer. This transforms the harmful effect (electromagnetic radiation) into a beneficial effect (thermal comfort), resolving the contradiction between shielding effectiveness and temperature increase.
2Object-affected harmful factors
If the grid distance between threads is reduced to block shorter wavelengths, then shielding effectiveness against higher frequency radiation is improved, but the fabric becomes less breathable and more complex
Solution Approach 1:
The patent adjusts the grid distance parameter of the network structure to optimize shielding effectiveness for specific wavelength ranges. By changing the spacing between conducting threads, the fabric can be tuned to block particular frequencies of electromagnetic radiation while maintaining reasonable breathability and structural simplicity, avoiding the need for excessively fine grids.
3Object-affected harmful factors
If electrically conducting threads are used to shield magnetic fields, then protection against magnetic radiation is improved, but the fabric's electrical conductivity increases which may cause other issues
Solution Approach 1:
The patent applies electrical conductivity locally only where needed for magnetic field shielding, rather than making the entire fabric uniformly conductive. The conducting threads are strategically positioned in the network structure to create shielding zones specifically针对 magnetic fields, while the rest of the fabric maintains its normal properties, thus achieving protection without compromising overall fabric safety.
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 fabric provides comprehensive protection against electromagnetic radiation and magnetic fields, ensuring a safe environment for users by converting electromagnetic radiation into heat and maintaining a comfortable temperature.
Implementation Method 1
The electromagnetic radiation is transformed into heat in electrically conducting threads, and the temperature of the fabric increases by several degrees.
Implementation Method 2
The threads are of a material that conducts electricity well. The electromagnetic radiation is transformed into heat in electrically conducting threads... The thread conducting electricity well is wound, so twined/spun into a winding... electromagnetic fields and/or magnet fields from the outside towards a person die out
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
The invention relates to a fabric. The fabric (10) comprises, in the fabric material, threads (11a1,12a1;13a1,14a1) of a material conducting electricity well, by means of which electromagnetic radiation and magnetic fields are filtered. The threads (11a1,12a1;13a1,14a1) are placed next to each other. Furthermore, the threads are wound around their winding axes (X1,X2;Y1,Y2) so that the first thread (11a1, 13a1) in the fabric is wound clockwise, and the second thread (12a1, 14a1) next to it is wound counterclockwise.