Surface electrical heating element e.g. for car seat - has carrier of flexible material into which is set heating element consisting of multiple filaments

摘要

The heating element has a carrier material that is flexible into which is set a pattern of electrical resistance heating wires. Main contact strips are located along opposite edges and each consists of a number of conductive filaments (a-c). The heating wires (3-7) bridge between contact strips and a cold pressing operation ensures good contact. The heating wires have a zig-zag pattern and can consist of a number of filaments. All wires and filaments are flexible. ADVANTAGE - Suitable for mass production. Flexible form.