JPH01259511A - Superconducting coil - Google Patents

Abstract

PURPOSE:To provide a superconducting coil simplified in construction and facilitated in formation by holding part of a superconducting wire kept projected outside a groove formed in a spacer plate and bringing the rear surface of the superconducting wire into contact with the outside of the superconducting wire of an inside layer. CONSTITUTION:A superconducting coil is formed, including toothed spacer plates each constructed with grooves 6a and protrusions 6b. The toothed spacer plates 6 are disposed inwardly in each layer, and the superconducting wire 5 is wound around the spacer plates 6, fitted in the grooves 6a of the spacer plates 6. Thereupon, the superconducting wire 5 is projected into toothed shapes which form gaps 7 with the spacer plates 6 of the respective layers. The gaps 7 form coolant flowing paths to cool the superconducting wires 5. Thus, a superconducting coil of a simplified construction can be formed with ease.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a superconducting coil having a gap for guiding a coolant between wound superconducting wires.

[Conventional technology]

FIG. 6 is a sectional view of a conventional superconducting coil shown in, for example, Japanese Unexamined Patent Publication No. 61-14709, and FIG. 7 is a sectional view taken along the line ■-■ in FIG.
) * (ld) r (le) and (1f)
is a superconducting wire whose surface is covered with enamel insulation (2), and this superconducting wire Da)
Only (ld) has a spirally wound spacer (3) on its surface, and is alternately combined with other superconductors @ (le) and (lf) to form a void (4) shown in Fig. form a superconducting coil with

In the superconducting coil configured as described above, a refrigerant (not shown) flows through the air gap (4) that communicates throughout the entire area, and the superconducting coil becomes superconducting.
(lc) or 1f).

[Problem to be solved by the invention]

Conventional superconducting coils are constructed as described above, so two types are required: one in which a spacer is spirally wound around a superconducting wire, and one without a spacer. There were 11 cases where the structure was complicated due to the winding process and required time and effort to manufacture.

This invention was made to solve the above-mentioned problems, and an object thereof is to obtain a superconducting coil that has a simple structure and is easy to manufacture.

[Means to solve the problem]

A superconducting coil according to the present invention includes a superconducting wire in which each turn and each layer are wound at predetermined intervals, and a groove-shaped superconducting wire, with a part of the superconducting wire protruding outside the groove. The superconducting wire is held in this state by a spacer plate whose back surface is in contact with the outside of the superconducting wire of the inner layer.

[Effect]

In the superconducting coil according to the present invention, the spacer plates form a coolant flow path for cooling the superconducting wire.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a cross-sectional view of the superconducting coil, and FIG. 2 is an enlarged perspective view of the superconducting coil shown in FIG. 1, with a portion cut away. In the figure, (
5) is a sieve enamel insulation (2) made of stabilizing material and superconducting wire.
) is a superconducting wire coated with stone, (6) is a spacing plate formed in a tooth shape with grooves (6a) and protrusions (6b), and (7) is between the superconducting wire (5) and the spacing plate (6). It is a void formed in the

A method of winding an embodiment configured as described above will be explained.

Super conductive wire (5) is wound! A 1-conductor coil is formed. During winding, a tooth-shaped spacer plate (6) is placed inside each layer, and the superconducting wire (5) is fitted into the groove (6a) of the spacer plate while being sequentially wound. At this time, the superconducting wire is formed with tooth-shaped protrusions and is spaced (
7). This sky 1! IN (7) serves as a coolant flow path to cool the superconducting wire (5).

In addition, in FIG. 1, the protrusion (6b) of the spacing plate was provided for each turn of the superconducting wire (5), but as shown in FIG. 3, the protrusion (8a) of the spacing plate ( 8) or 3
It may be arranged for each turn (not shown). or,
In Fig. 1, the spacer plate (9) is integrated into each layer row, and
! A long piece was made along the # line, but it was divided into each turn as shown in Figure 4, and the short spaced pieces (9) were made into super 11 pieces.
They may be arranged in isolation along the four lines.

〔Effect of the invention〕

As described above, according to the present invention, each turn and each layer are wound at predetermined intervals, and a superconducting wire is formed into a groove shape, and a part of the superconducting wire is formed in the groove. Since the superconducting coil is held in an outwardly protruding state and is configured with a spacer plate whose back surface is in contact with the outside of the superconducting wire of the inner layer, it is possible to obtain a superconducting coil that is simple in structure and easy to manufacture. There is.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a superconducting coil according to one embodiment of the present invention, FIG. 2 is an enlarged partially cutaway perspective view of the superconducting coil of FIG. 1, and FIGS. 3 and 4 are cross-sectional views of other embodiments. 5 is a partially cutaway enlarged perspective view of FIG. 4, side 6 is a sectional view of a conventional superconducting coil, and FIG. 7 is a sectional view taken along line v1--■ in FIG. 6. In the figure, (5) is a superconducting wire, (6) is a spacing plate, and (6) is a superconducting wire.
a) is a groove, and (7) is a void. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A superconducting wire in which each turn and each layer are wound at predetermined intervals, and the superconducting wire has a groove shape, and the groove holds the superconducting wire with a part of it protruding outside the groove, and the back surface of the superconducting wire. and a spacer plate abutted on the outside of the superconducting wire of the inner layer.