Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
Engineering Research Center of Digitized Textile & Apparel Technology, Ministry of Education, College of Information Science and Technology, Donghua University, Shanghai 201620, China.
Sensors (Basel). 2019 Aug 29;19(17):3745. doi: 10.3390/s19173745.
Electronic textiles demand a new family of flexible circuit boards in the construction of fiber or fiber assemblies. This paper presents a stretchable woven fabric circuit board (FCB) with permanent as well as detachable electrical connections to sensors or other wearable electronics components. The woven FCB was created by integrating conductive yarns into an elastic woven fabric. Permanent connection was designed between the conductive tracks and flexible sensors; detachable connection was achieved by the helical structure of conductive yarns wrapping around the rigid component electrode encapsulated within elastomeric layer. The developed FCB, with its connections to flexible sensors or rigid components, is porous, flexible, and capable of stretching to 30% strain. The woven FCB with permanent connection to temperature sensors has a large fatigue life of more than 10,000 cycles while maintaining constant electrical resistance due to crimped configurations of the conductive track in the elastic fabric substrate and stable contact resistance. A prototype of the FCB assembly, with independent light-emitting diodes electrically linked and mechanically supported by the woven FCB, is also demonstrated for wearable applications.
电子纺织品在纤维或纤维组件的构建中需要一种新型的柔性电路板。本文提出了一种具有永久性和可拆卸性电气连接的可拉伸编织织物电路板(FCB),可与传感器或其他可穿戴电子元件连接。编织 FCB 是通过将导电纱线集成到弹性编织织物中而制成的。在导电轨道和柔性传感器之间设计了永久性连接;通过围绕弹性层内封装的刚性组件电极的螺旋结构实现了可拆卸连接。所开发的 FCB 与柔性传感器或刚性组件相连,具有多孔、灵活和可拉伸至 30%应变的特点。由于导电轨道在弹性织物基底中的卷曲配置以及稳定的接触电阻,具有永久性连接的温度传感器的编织 FCB 具有超过 10,000 次循环的大疲劳寿命,同时保持恒定的电阻。还展示了一个由 FCB 组装而成的原型,其中独立的发光二极管通过编织 FCB 进行电气连接和机械支撑,可用于可穿戴应用。