| 摘要 |
The present invention relates to a composite structure including: a plurality of insulated conductor groups which include a plurality of insulated conductors coated in a lump with one binding by an insulating vanish respectively, and are arranged on a closed loop to form a space part in the inside; and a sheath surrounding the outside of the plurality of arranged insulated conductor groups. According to the present invention, a seat heating wire having the composite structure can improve tension and durability of the insulated conductor groups performing conductor role and can make uniform heat radiation distribution on the surface of a heating wire, and also can maintain the original shape of arrangement structure of the insulated conductor group stably regardless of external force, bending and twisting. |
