Superconductive wire and current limiter

Patent metadata

Field	Value
Publication number	US-2018152016-A1
Application number	US-201615570825-A
Country	US
Kind code	A1
Filing date	Jul 1, 2016
Priority date	Jul 16, 2015
Publication date	May 31, 2018
Grant date	—

Abstract

Provided is a superconductive wire comprising: a superconductive wire core which has a first main surface extending in the longitudinal direction and a second main surface located on the side opposite to the first main surface; a first heat dissipation member disposed on the first main surface; and a second heat dissipation member disposed on the second main surface. The first heat dissipation member is connected to the first main surface at a plurality of first connection locations lined up along the longitudinal direction. The second heat dissipation member is connected to the second main surface at a plurality of second connection locations lined up along the longitudinal direction. In the planar view from the thickness direction of the superconductive wire, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other.

First claim

1 . A superconductive wire comprising:
a superconductive wire core which has a first main surface extending in the longitudinal direction and a second main surface located on the side opposite to the first main surface and extending in the longitudinal direction; a first heat dissipation member disposed on the first main surface; and a second heat dissipation member disposed on the second main surface, the first heat dissipation member being connected to the first main surface at a plurality of first connection locations which are lined up along the longitudinal direction, the second heat dissipation member being connected to the second main surface at a plurality of second connection locations which are lined up along the longitudinal direction, in a planar view from the thickness direction of the superconductive wire, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other.

2 . The superconductive wire according to claim 1 , wherein
in the planar view, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other in the longitudinal direction.

3 . The superconductive wire according to claim 2 , wherein
the first heat dissipation member and the second heat dissipation member each includes a corrugated plate structure in which a plurality of ridges and a plurality of valleys each extend along the width direction of the superconductive wire core, each of the plurality of valleys of the corrugated plate structure in the first heat dissipation member is connected to the first main surface at a corresponding one of the plurality of first connection locations, each of the plurality of ridges of the corrugated plate structure in the second heat dissipation member is connected to the second main surface at a corresponding one of the plurality of second connection locations, in the planar view, each of the plurality of valleys in the first heat dissipation member is overlapped with a corresponding one of the plurality of valleys in the second heat dissipation member, and each of the plurality of ridges in the first heat dissipation member is overlapped with a corresponding one of the plurality of ridges in the second heat dissipation member.

4 . The superconductive wire according to claim 2 , wherein
the first heat dissipation member is formed by arranging a plurality of first plate-shaped members extending in the width direction of the superconductive wire core on the first main surface with an interval present therebetween along the longitudinal direction, the second heat dissipation member is formed by arranging a plurality of second plate-shaped members extending in the width direction of the superconductive wire core on the second main surface with an interval present therebetween along the longitudinal direction, each of the plurality of first plate-shaped members is connected to the first main surface at a corresponding one of the plurality of first connection locations, each of the plurality of second plate-shaped members is connected to the second main surface at a corresponding one of the plurality of second connection locations.

5 . The superconductive wire according to claim 1 , wherein
in the planar view, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other in the width direction of the superconductive wire core.

6 . The superconductive wire according to claim 5 , wherein
the first heat dissipation member and the second heat dissipation member each includes a corrugated plate structure in which a plurality of ridges and a plurality of valleys each extend along the width direction of the superconductive wire core, the length of the corrugated plate structure in the width direction thereof is less than the length of the superconductive wire core in the width direction thereof, each of the plurality of valleys of the corrugated plate structure in the first heat dissipation member is connected to the first main surface at a corresponding one of the plurality of first connection locations in a region located at one side of the first main surface in the width direction, each of the plurality of ridges of the corrugated plate structure in the second heat dissipation member is connected to the second main surface at a corresponding one of the plurality of second connection locations in a region located at the other side of the second main surface in the width direction which is opposite to the region located at one side of the first main surface in the width direction.

7 . The superconductive wire according to claim 5 , wherein
the first heat dissipation member is formed by arranging a plurality of first plate-shaped members extending in the width direction of the superconductive wire core on the first main surface with an interval present therebetween along the longitudinal direction, the second heat dissipation member is formed by arranging a plurality of second plate-shaped members extending in the width direction of the superconductive wire core on the second main surface with an interval present therebetween along the longitudinal direction, the length of each of the plurality of first plate-shaped members and the length of each of the plurality of second plate-shaped members in the width direction thereof is less than the length of the superconductive wire core in the width direction thereof, each of the plurality of first plate-shaped members is connected to the first main surface at a corresponding one of the plurality of first connection locations in a region located at one side of the first main surface in the width direction, each of the plurality of second plate-shaped members is connected to the second main surface at a corresponding one of the plurality of second connection locations in a region located at the other side of the second main surface in the width direction which is opposite to the region located at one side of the first main surface in the width direction.

8 . The superconductive wire according to claim 5 , wherein
in the planar view, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other in the longitudinal direction.

9 . The superconductive wire according to claim 1 , wherein
the superconductive wire further includes a conductive connection layer formed between the first heat dissipation member and the superconductive wire core or between the second heat dissipation member and the superconductive wire core at each of the plurality of first connection locations and each of the plurality of second connection locations.

10 . The superconductive wire according to claim 1 , wherein
the superconductive wire core is formed by laminating a plurality of the superconductive members along the normal direction of the main surface, each of the plurality of the superconductive members having a main surface extending in the longitudinal direction.

11 . A current limiter comprising:
a superconductive unit made of the superconductive wire according to claim 1 ; and a coolant container configured to house therein the superconductive unit and coolant for cooling the superconductive unit.

Assignees

• Sumitomo Electric Industries

Inventors

• Honda Yoshihiro
• Isojima Shigeki

Classifications

• H02H7/001

  for superconducting apparatus, e.g. coils, lines, machines · CPC title

• H01L39/24

  Electricity · mapped topic

• H01F6/02

  Quenching; Protection arrangements during quenching {(protection circuits H02H7/001)} · CPC title

• H01L39/16

  Electricity · mapped topic

• H02H9/023 Primary

  Current limitation using superconducting elements · CPC title