Superconducting magnet

Patent metadata

Field	Value
Publication number	US-9431160-B2
Application number	US-201214355367-A
Country	US
Kind code	B2
Filing date	Jan 30, 2012
Priority date	Jan 30, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A superconducting magnet includes a superconducting coil, a helium tank that accommodates the superconducting coil and stores liquid helium therein, a radiation shield that surrounds a periphery of the helium tank, a vacuum vessel that accommodates the radiation shield, an exhaust port that is connected to the helium tank and exhausts gasified helium, a lead that electrically connects an external power supply and the superconducting coil and is attachable to and removable from the vacuum vessel, a connector that connects the lead and the superconducting coil, and a thermal conductive member having one end in contact with at least one of the connector and the exhaust port, and having the other end located outside the vacuum vessel and attachable to and removable from the vacuum vessel.

First claim

The invention claimed is:

1. A superconducting magnet comprising:
a superconducting coil;
a helium tank that accommodates said superconducting coil and stores liquid helium therein;
a radiation shield that surrounds a periphery of said helium tank;
a vacuum vessel that accommodates said radiation shield;
an exhaust port that is connected to said helium tank and exhausts gasified helium;
a lead that electrically connects an external power supply and said superconducting coil and is attachable to and removable from said vacuum vessel;
a connector that connects said lead and said superconducting coil; and
a thermal conductive member having one end in contact with said connector and said exhaust port, and having the other end located outside said vacuum vessel and attachable to and removable from said vacuum vessel,
said connector including two connection terminals that electrically connect said lead and said superconducting coil, a main body that holds said two connection terminals and has thermal conductivity, and an electrical insulating portion interposed between said two connection terminals and said main body, and
said thermal conductive member being in contact with a full length of said main body in a direction in which said two connection terminals are aligned.

2. A superconducting magnet comprising:
a superconducting coil;
a helium tank that accommodates said superconducting coil and stores liquid helium therein;
a radiation shield that surrounds a periphery of said helium tank;
a vacuum vessel that accommodates said radiation shield;
an exhaust port that is connected to said helium tank and exhausts gasified helium;
a lead that electrically connects an external power supply and said superconducting coil and is attachable to and removable from said vacuum vessel;
a connector that connects said lead and said superconducting coil; and
a thermal conductive member having one end in contact with said connector and said exhaust port, and having the other end located outside said vacuum vessel and attachable to and removable from said vacuum vessel.

3. The superconducting magnet according to claim 2 , further comprising
a heating unit that heats the other end of said thermal conductive member.

4. The superconducting magnet according to claim 2 , wherein
said connector includes a connection terminal that electrically connects said lead and said superconducting coil, a main body that holds said connection terminal and has thermal conductivity, and an electrical insulating portion interposed between said connection terminal and said main body.

5. The superconducting magnet according to claim 1 , wherein
said thermal conductive member contains copper.

6. The superconducting magnet according to claim 1 , wherein the thermal conductive member is L-shaped.

7. The superconducting magnet according to claim 2 , wherein the thermal conductive member is L-shaped.

8. The superconducting magnet according to claim 1 , wherein a portion of the thermal conductive member is disposed below the main body of the connector, and another portion of the thermal conductive member is disposed above the connector.

9. The superconducting magnet according to claim 2 , wherein a portion of the thermal conductive member is disposed below the main body of the connector, and another portion of the thermal conductive member is disposed above the connector.

Assignees

• Inoue Tatsuya
• Mitsubishi Electric Corp

Inventors

• Inoue Tatsuya

Classifications

• H01F6/065

  Feed-through bushings, terminals and joints (leading of conductors or axles through casings of transformers H01F27/04) · CPC title

• H01F6/06

  Coils, e.g. winding, insulating, terminating or casing arrangements therefor · CPC title

• H01F6/04 Primary

  Cooling · CPC title

• H01R4/68

  Connections to or between superconductive connectors · CPC title