# US 10,483,025 B2 · Superconductive coil module including a shaking coil

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- Number: US 10,483,025 B2
- Document ID: US10483025B2
- Status: Granted
- Kind: B2
- Application number: 15/421,617
- Filed: 2017-02-01
- Published: 2017-08-03
- Granted: 2019-11-19
- Earliest claimed: 2016-02-03
- Assignees: Korea University Research and Business Foundation
- Applicants: Korea University Research and Business Foundation
- Inventors: Hai Gun Lee; Kwang Lok Kim; Seong Gyeom Kim
- Web page: https://patentgrep.com/patent/US10483025B2

## CPC

- H01F 6/06: Coils, e.g. winding, insulating, terminating or casing arrangements therefor
- G01R 33/3815: with superconducting coils, e.g. power supply therefor
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

A superconductive coil module includes a superconductive coil a superconductive coil and a shaking coil. The superconductive coil includes a bobbin having a cylindrical shape, and a superconductive wire member of superconductive property, which surrounds an outer circumferential surface of the bobbin. The superconductive coil is configured to generate a magnetic field along a radial direction in case of a charging event. The shaking coil is disposed adjacent to the superconductive wire member, and is configured to generate an alternating magnetic field to decrease a magnitude of a screening current induced magnetic field formed in the superconductive wire member. Thus, the superconductive coil module includes the shaking coil to decrease the magnitude of a screening current induced magnetic field formed in the superconductive wire member using a voltex shaking effect to maintain a central magnetic field uniform.

## Claims

### Claim 1

A superconductive coil module comprising:
a superconductive coil including a bobbin having a cylindrical shape, and a superconductive wire member of superconductive property, surrounding an outer circumferential surface of the bobbin, the superconductive coil being configured to generate a magnetic field along a radial direction in case of a charging event;
a shaking coil being disposed adjacent to the superconductive wire member, and being configured to generate an alternating magnetic field to decrease a magnitude of a screening current induced magnetic field formed in the superconductive wire member; and
a spacer being interposed between the superconductive wire member and the shaking coil, and being configured to prevent an electrical short between the superconductive member and the shaking coil.

### Claim 2 (depends on 1)

The superconductive coil module of claim 1, wherein the shaking coil generates the alternating magnetic field along a direction parallel to an extension direction of the superconductive wire member and in a region outside of the superconductive wire member.

### Claim 3 (depends on 1)

The superconductive coil module of claim 1, wherein the shaking coil surrounds the superconductive coil with a co-axis of the superconductive coil to have a toroidal shape.

### Claim 4 (depends on 1)

The superconductive coil module of claim 1, wherein the shaking coil include copper.

### Claim 5 (depends on 1)

The superconductive coil module of claim 1, wherein the superconductive coil includes a second generation high temperature superconductive coil.