초록 ▼

A soft heating element, utilizing electro conductive textile threads as a heating means having additional safety functions as TCO (thermal cut-off) and TSL (temperature self-limiting) devices. The thermal cut-off function is achieved through melting of the electro conductive threads at the temperatu

A soft heating element, utilizing electro conductive textile threads as a heating means having additional safety functions as TCO (thermal cut-off) and TSL (temperature self-limiting) devices. The thermal cut-off function is achieved through melting of the electro conductive threads at the temperatures above 120.degree. C. and below 350.degree. C., which results in termination of electrical continuity in the heating element. The temperature self-limiting capability is achieved through a heating thread electrical resistance increase during slow elevation in its temperature, which is below its melting point. Methods of electrical and mechanical connection between heating threads and metal conductors, utilizing winding of connections with flexible strands of fibers or wires, with optional subsequent placement of a rigid mechanical fastener over the winding. Method of providing electrical redundancy of heating circuits by stitching, laminating, weaving or knitting an electrically conductive thread across the multiple runs of the heating thread.

대표청구항 ▼

1. A soft and flexible heating element having a durable construction for incorporation into a plurality of articles, said heating element comprising:a conductive textile comprising at least one electrically conductive heating textile thread as temperature self limiting heating means; said at least o

1. A soft and flexible heating element having a durable construction for incorporation into a plurality of articles, said heating element comprising:a conductive textile comprising at least one electrically conductive heating textile thread as temperature self limiting heating means; said at least one heating textile thread, melts at the temperatures above 120.degree. C. and below 350.degree. C., which terminates electrical continuity in said temperature self limiting heating means.