Connection structure of superconducting cables, superconducting cable, and current terminal structure at end portion of superconducting cable

Patent metadata

Field	Value
Publication number	US-2016190788-A1
Application number	US-201414910248-A
Country	US
Kind code	A1
Filing date	Jul 29, 2014
Priority date	Aug 6, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

A connection structure is provided for a pair of superconducting cables each including a cable core including a former and a superconductive conductor layer composed of a plurality of superconducting wires arranged along an outer circumference of the former. The superconducting wire has a laminated structure including a base plate and a superconducting layer formed on a side closer to one of principal surfaces of the base plate. One of the superconducting cables and another of the superconducting cables are connected with each other by a first superconducting wire and a second superconducting wire such that the superconducting layers of the first superconducting wire and the second superconducting wire face each other.

First claim

1 . A connection structure of a pair of superconducting cables each including a cable core including a former and a superconductive conductor layer composed of a plurality of superconducting wires arranged along an outer circumference of the former, wherein
Each of the plurality of superconducting wires has a laminated structure including a base plate and a superconducting layer formed on a side closer to one of principal surfaces of the base plate, at least one of the plurality of superconducting wires in the superconductive conductor layer of one of the superconducting cables is a first superconducting wire in which the superconducting layer is arranged inside of the base plate along a radial direction of the cable core, at least one of the plurality of superconducting wires in the superconductive conductor layer of another of the superconducting cables is a second superconducting wire in which the superconducting layer is arranged outside of the base plate along a radial direction of the cable core, and the one of the superconducting cables and the another of the superconducting cables are connected with each other by the first superconducting wire and the second superconducting wire such that the superconducting layers of the first superconducting wire and the second superconducting wire face each other.

2 . The connection structure of superconducting cables according to claim 1 , wherein
a distribution of arrangement of the first superconducting wires along a circumferential direction of the cable core of the one of the superconducting cables and a distribution of arrangement of the second superconducting wires along a circumferential direction of the cable core of the another of the superconducting cables are identical.

3 . The connection structure of superconducting cables according to claim 1 , wherein
the first superconducting wires and the second superconducting wires of the superconductive conductor layer of each of the superconducting cables are arranged so as to switch periodically along an outer circumference of the former.

4 . The connection structure of superconducting cables according to claim 1 , wherein
the superconductive conductor layer of the one of the superconducting cables is composed only of the first superconducting wires and the superconductive conductor layer of the another of the superconducting cables is composed only of the second superconducting wires.

5 . A superconducting cable comprising a cable core including a former and a superconductive conductor layer, wherein
the superconductive conductor layer is composed of a plurality of superconducting wires arranged along an outer circumference of the former, each of the plurality of superconducting wires includes a laminated structures including a base plate and a superconducting layer formed on a side closer to one of a principal surfaces of the base plate, and the superconductive conductor layer includes a first superconducting wire which is arranged such that the superconducting layer is located inside of the base plate along a radial direction of the cable core and a second superconducting wire which is arranged such that the superconducting layer is located outside of the base plate along the radial direction of the cable core.

6 . The superconducting cable according to claim 5 , wherein
the first superconducting wire and the second superconducting wire of the superconductive conductor layer are arranged so as to switch periodically along a circumferential direction of the former.

7 . An electrical terminal structure of an end portion of the superconducting cable according to claim 5 , wherein
a superconducting wire for connection is provided inside of an end portion of the first superconducting wire, the superconducting wire for connection being in a state where the superconducting layer is located outside of the base plate along the radial direction of the cable core, the superconducting wire for connection extends from the end portion of the first superconducting wire in an extending direction thereof, and the superconducting layers of the superconducting wire for connection and the first superconducting wire are connected with each other.

Assignees

• Furukawa Electric Co Ltd

Inventors

• Mitsuhashi Takaharu
• Yagi Masashi
• Nomura Tomoya
• Teng Jun
• Liu Jin
• Nakayama Ryou

Classifications

• H02G15/34 Primary

  Cable fittings for cryogenic cables {(superconductive cables per se H01B12/00)} · CPC title

• H01R4/68

  Connections to or between superconductive connectors · CPC title

• Y02E40/60

  Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment · CPC title