Abstract
Abstract Electro-conductive (EC) yarns can be woven into a hybrid fabric to enable electrical current to flow through the fabric from one component A to another component B. These hybrid fabrics form the bases of woven e-textiles. However, at the crossing point of an EC yarn in warp and in weft direction, there is a contact resistance and thus generation of heat may occur in this area. Both phenomena are inseparable: if the contact resistance in the EC contact increases, the generated heat will increase as well. Predicting this electrical and thermal behavior of EC contacts in hybrid woven fabrics with stainless steel yarns is possible with a mathematical model based on the behavior of a metal oxide varistor (MOV). This paper will discuss in detail how this can be achieved.
Highlights
Electro-conductive (EC) yarns are basic units of smart textile, as they create a path for current flow or routing of electrical signals [1] in the smart textile system, or sometimes are part of the components of smart textiles
Both phenomena are inseparable: if the contact resistance in the EC contact increases, the generated heat will increase as well. Predicting this electrical and thermal behavior of EC contacts in hybrid woven fabrics with stainless steel yarns is possible with a mathematical model based on the behavior of a metal oxide varistor (MOV)
Studying the EC contacts in hybrid woven fabrics resulted in a mathematical model that can predict the temperature difference of EC contacts as a function of the current flowing through these contacts
Summary
Electro-conductive (EC) yarns are basic units of smart textile, as they create a path for current flow or routing of electrical signals [1] in the smart textile system, or sometimes are part of the components of smart textiles. Smart textiles are textiles with additional features such as sensing and/or acting. Heating garments and socks are a few examples of these new emerging smart textiles. Smart textile systems on the other hand are smart textiles with features/components based on electrical circuits. They are referred to as e-textiles [2]. In an e-textile, electricity is used to power the components comprising the smart textile system. Various textile technologies can be applied, such as stitching or embroidering EC yarns between the components [3], but the interconnection can already be a part of the product, e.g. by weaving or knitting.
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