Abstract: With the development of technology, smart wearable devices are becoming increasingly popular in daily life. To achieve the intelligent functions of these devices, the number of integrated modules and the complexity of power supply systems have continually increased, posing higher demands on power transmission cables suitable for flexible smart wearable devices. In this context, textile power cables, as a power transmission solution featuring multi-wire arrangement, have demonstrated great potential for application in smart wearable devices.
Textile power cables have many advantages compared to traditional power cables. Traditional power cables are usually rigid and lack sufficient flexibility and comfort, which may cause discomfort to users when worn. In contrast, textile power cables, through the use of flexible materials and innovative structural designs, provide better adaptability and wearing experience, particularly suitable for smart clothing that requires prolonged wear. Many scholars have designed and prepared various types of textile cables using different materials and structures, showing the application prospect of textile power cables in smart wearable devices. These studies show that by selecting appropriate materials and structures, the flexibility and wearability of textile power cables can be significantly improved. This study innovatively designed a power cable webbing suitable for multi-wire expansion and high elasticity requirements, proposed a novel design scheme for elastic conductive wrapping yarn based on a spiral structure, where metal wires were spirally wrapped around the surface of an elastic spandex core yarn to achieve both conductivity and elastic performance. A flattened webbing with a tubular three-layer structure was designed to maintain structural stability and high resilience under mechanical strain. Combined with shuttle loom forming technology, a double-warp rapier loom was utilized in conjunction with differential grouping warp tension adjustment technology to control the warp stretch ratio or let-off amount during weaving. Based on the parallel resistance theorem, the collaborative optimization mechanism between the number of conductors and material combinations was explored and the structural and power transmission performance of the power cable webbing were evaluated.
The results show that this study has innovatively designed a power cable webbing suitable for multi-wire expansion and high elasticity requirements, which not only achieves a combination of conductivity and elastic performance but also ensures structural stability and high recoverability under mechanical strain. This study successfully prepared an elastic cable webbing with good power transmission performance, providing a novel and efficient solution for power transmission in flexible smart wearable devices. This design holds broad application prospects and will play an important role in smart clothing and other flexible electronic devices in the future.

Key words: smart wearable, multi-power transmission, power transmission, elasticity, power cable webbing, conductive yarn, structural design

摘要： 针对柔性智能可穿戴设备的多功率传输需求，依据电缆扁平化、导线螺旋弹性化和织物组织复合相结合的设计原理，采用包缠工艺和有梭织机成形技术制备了弹性电力电缆织带（简称电缆织带）；并基于并联电阻理论，开发了不同根数的包缠导电纱配置和差异化张力控制技术，确保获得结构稳定、形态平整的电缆织带外观，使电缆织带在多导线配置下保持优良的力学和电学性能。采用电子显微镜、多功能电子织物强力仪、电阻测试设备等观察测试了电缆织带的表面形态和力学、电学性能。结果表明，应用前述设计原理和上机成形工艺有效实现了弹性电力电缆织带的制备及多线扩展，满足电子纺织品的不同功能模块的功率传输需求。该设计为柔性智能可穿戴设备中的电力传输提供了新方案，具有广阔的应用前景。

关键词: 智能可穿戴, 多功率传输, 电力传输, 弹性, 电缆织带, 导电纱, 结构设计