Coil structure and manufacturing method therefor

Abstract

The present application relates to a new type coil structure and a manufacturing method therefor. The new type coil structure comprises an inner coil, an insulating cylinder layer, an outer coil, and first angular rings, wherein the inner coil is arranged at an inner side of the insulating cylinder layer in a surrounding manner; the outer coil is arranged at an outer side of the insulating cylinder layer in a surrounding manner; and two first angular rings are provided in such a way that annular structures are formed by means of insulating tapes being wound around the two first angular rings and the two first angular rings are respectively positioned at two ends of the outer coil. By means of the first angular rings being respectively arranged at the two ends of the outer coil, the electric field intensity at the end portions of the outer coil can be reduced, such that the electric insulation performance of the new type coil structure is improved. In addition, since the first angular rings are directly formed by means of winding the insulating tapes, the phenomenon of a reduction in the insulation performance of the first angular rings due to same prone to being dampened is avoided, such that the overall electrical insulation performance of the new type coil structure is relatively stable, and the reliability of the insulation performance is thus higher.

Dependencies are inferred from the claim text.