Superconducting magnet apparatus
View Patent ↗To provide a superconducting magnet apparatus with a structure which can prevent an increase in apparatus size even when a number of connection portions serving to connect superconducting wires is great. The superconducting magnet apparatus includes a first wiring-holding portion (tubular body ( 12 )) extending from a bobbin ( 6 ) in an axial direction of a superconducting coil ( 1 ) and a second wiring-holding portion (joint plate ( 13 )) which is provided on a same side in the axial direction as the tubular body ( 12 ), extends in a direction intersecting with the axial direction, and has a greater diameter than that of the bobbin ( 6 ) and the tubular body ( 12 ). Superconducting wires ( 7 a to 11 a ) which extend from the superconducting coil ( 1 ) and connect to one another are spirally wound on the tubular body ( 12 ) and fastened to a groove ( 13 a ) formed on the joint plate ( 13 ).
1. A superconducting magnet apparatus comprising:
a bobbin around which superconducting wires are wound to constitute a superconducting coil;
a tubular first wiring-holding portion arranged adjacently to the bobbin on one side of an axial direction of the bobbin; and
a plate-shaped second wiring-holding portion connected to the first wiring-holding portion on the one side in the axial direction at a geometric center of the plate-shaped second wiring-holding portion,
wherein
a plurality of lead lines, being the superconducting wires having been drawn from the bobbin, are wound on the first wiring-holding portion, extend to the second wiring-holding portion, and are fastened to grooves formed on the second wiring-holding portion, with ends thereof being connected,
the second wiring-holding portion comprises a plurality of connection portions at which the lead lines are connected, and
in a direction orthogonal to the axial direction, an outer diameter of the second wiring-holding portion is greater than an outer diameter of the first wiring-holding portion.
2. The superconducting magnet apparatus according to claim 1 , wherein a plurality of the second wiring-holding portions are arranged in the axial direction.
3. The superconducting magnet apparatus according to claim 1 , wherein an outer diameter of the first wiring-holding portion is greater than or equal to an outer diameter of a body of the bobbin.
4. The superconducting magnet apparatus according to claim 1 , wherein the superconducting wires are tape-shaped wires.
5. The superconducting magnet apparatus according to claim 1 , wherein the superconducting wires are fastened to the second wiring-holding portion in a coiled shape or a linear shape or a curved shape.
6. The superconducting magnet apparatus according to claim 1 , wherein the superconducting wires are fastened to the first wiring-holding portion and the second wiring-holding portion with an adhesive agent, a putty, a tape, a wax, or a clay.
7. The superconducting magnet apparatus according to claim 1 , further comprising a persistent-current switch,
wherein the persistent-current switch is arranged at a site different from the second wiring-holding portion.
8. The superconducting magnet apparatus according to claim 1 , wherein the superconducting coils are wound by intra-layer no-insulation.
9. The superconducting magnet apparatus according to claim 1 , wherein the plurality of connection portions are formed on the second wiring-holding portion.