Patent ID: 11935694
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of manufacturing a superconducting coil, the method comprising:
winding a superconducting wire around a rod-shaped jig to form a plurality of disk-shaped windings to be coaxially arranged;
removing the rod-shaped jig from the disk-shaped windings;
measuring a distance from a winding central axis to an outer circumferential surface of each of the disk-shaped windings, the winding central axis being a central axis of an inner circumferential surface of each of the disk-shaped windings;
forming an outer frame portion including a plurality of ring-shaped fixing portions that each have a recessed groove portion extending in a circumferential direction on an inner circumferential side, the ring-shaped fixing portions being coaxially arranged;
measuring a shape of a bottom surface of the recessed groove portion of each of the ring-shaped fixing portions;
aligning a central axis of an entirety of the ring-shaped fixing portions based on measurement of the shape of the bottom surface;
inserting each of the disk-shaped windings into the recessed groove portion of a corresponding one of the ring-shaped fixing portions in a state where the outer circumferential surface of each of the disk-shaped windings is spaced apart from the bottom surface of the recessed groove portion of the corresponding one of the ring-shaped fixing portions, based on a result of measurement of a distance from the winding central axis to the outer circumferential surface of each of the disk-shaped windings, and a result of alignment of the central axis of the entirety of the ring-shaped fixing portions;
fixing the disk-shaped windings in a direction along the winding central axis by disposing a first adjustment member between one side surface of the recessed groove portion of each of the ring-shaped fixing portions and a corresponding one of the disk-shaped windings; and
by cooling and contracting each of the disk-shaped windings and the outer frame portion, bringing the outer circumferential surface of each of the disk-shaped windings into direct or indirect contact with the bottom surface of the recessed groove portion of the corresponding one of the ring-shaped fixing portions.