Wearable Retractable Heating Sheet with U-Shaped Wire Channels
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Solution Overview
Problem
Existing heating wires in wearable heating clothing cannot stretch or retract, limiting their application to non-elastic materials and compromising comfort and functionality.
Innovation Solution
A continuous bending U-shaped or inverted U-shaped preset channel is formed on an elastic fabric, allowing a heating wire to be arranged in a retractable manner, with the channel extending during stretching and secured by herringbone sewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If heating wires are used in traditional heating sheets, then heating function is achieved, but the heating sheet cannot stretch or retract
Solution Approach 1:
The heating wire path is segmented into multiple U-shaped or inverted U-shaped sections arranged in series, with each section capable of independent deformation. This segmentation allows the heating wire to follow the stretching motion of the fabric without breaking, as each U-shaped segment can expand and contract independently
Solution Approach 2:
The heating sheet transitions from a rigid fixed structure to a dynamic structure where the heating wire is arranged in flexible U-shaped paths that can adapt to fabric deformation. The heating wire maintains electrical connectivity while dynamically adjusting its configuration during stretching and retraction cycles
2Ease of operation
If heating sheets are made with fixed structures, then manufacturing is simplified, but wear comfort and flexibility are compromised
Solution Approach 1:
The heating wire is arranged in continuous bending U-shaped or inverted U-shaped curves rather than straight lines. These curved paths allow the heating element to flex and stretch with the fabric, improving wear comfort while maintaining a relatively simple overall structure that can be integrated into clothing
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 solution provides retractability and wear comfort by preventing heating wire breakage and enabling the heating sheet to stretch, suitable for areas requiring flexibility.
Implementation Method 1
The heating wire materials used in the heating sheets of wearable heating clothes available on the market, whether carbon fiber filaments, metal wires or carbon paste films, generate heat by taking advantage of the high impedance characteristic of the heating wires themselves
Implementation Method 2
the preset channel extends along with the fabric during stretching
Data Source
AI summary
The invention relates to the technical field of heating clothing and discloses a preparation method for a wearable retractable heating sheet. A continuous bending U-shaped or inverted U-shaped roundabout preset channel is formed on an elastic fabric, turns around at the half position of a heating path and is arranged in the same continuous bending U-shaped or inverted U-shaped roundabout manner, and a starting end and an ending end of the preset channel are in adjacent positions; a heating wire passes in the starting end of the preset channel and passes out of the ending end of the preset channel. The invention can not only meet the heating function of heating clothing, but also provide the stretching requirements of heating clothing.