원래 이름 기록: WELL ASCENT ELECTRONIC (GANZHOU) CO., LTD.

An insulated wire and a preparation method thereof, a coil, and an electronic/electrical device are provided. The insulated wire includes a conductor and a bonding layer, and a PEEK resin sequentially arranged on the outer side of the conductor. The structure of the bonding layer includes a polymerization unit and a polymerization unit, and the polymerization unit accounts for 5-15%.

An insulated wire and a preparation method therefor, a coil, and an electronic/electrical device are provided. In the preparation method, the thermoplastic polyimide is extruded to mold by adopting the extrusion process, so as to form the insulating layer on the core material, which can significantly improve the production efficiency compared to the traditional multiple-time coating process. The preparation process of the bonding layer and the extrusion process are optimized; the bonding layer is prepared by a specific bonding layer formulation; and then the insulating layer is extruded under a specific negative pressure, so that the prepared thermoplastic polyimide insulating layer has fewer bubbles, and the size of the bubbles is smaller, which ensures the insulating layer to have a higher breakdown voltage.