JP2003318017A - Superconductive coil and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a superconductive coil which is very reliable, compact, superior in performance, and odd-shaped. <P>SOLUTION: When a superconductive wire 1 is wound on a coil former to form a superconductive coil, the superconductive wire 1 is wound on an odd-shaped coil former 100 other than a cylindrical shape as kept in certain tension and pressed against the coil former 100 with a pressing jig 109. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting coil manufactured by winding a superconducting wire on a deformed winding type having a winding shape different from a cylindrical shape, and a method for manufacturing the same.

[0002]

2. Description of the Related Art In recent years, by improving the critical current density of high temperature superconducting wires, superconducting magnets for silicon single crystal pulling devices, magnets for magnetic separation, hybrid magnets for high magnetic fields, etc. have been put to practical use.

However, there are major technical problems in winding a high-temperature superconducting wire into a coil.

That is, the Bi type superconductor used for the high temperature superconducting wire is very fragile because it is a ceramic type material.

When strain exceeding a permissible value is applied to the high temperature superconducting wire, the critical current value and the n value are drastically reduced.

At present, the allowable tensile stress is 60 to 100.
It is about MPa, and the allowable bending strain is about 0.3%.

Further, the Bi2223 silver sheath wire rod has a very thin wire rod thickness of about 0.2 mm and is very difficult to handle.

Therefore, in order to make such a superconducting wire into a coil, a winding machine as disclosed in, for example, Japanese Unexamined Patent Publication No. 2001-257113 was developed to complete a high temperature superconducting coil for a silicon single crystal pulling apparatus. Has been allowed to.

Most of the high-temperature superconducting coils up to now have a coil-shaped cylindrical shape on which a high-temperature superconducting wire is wound.

In the case of a cylindrical coil, if winding is performed while applying a certain tension, a constant σr (pressing stress in the coil radial direction) is applied to the wound superconducting wire regardless of the winding phase. Therefore, it is possible to perform a very uniform coil winding.

On the other hand, in the case of a deformed coil whose winding form is not cylindrical, that is, in the case of a racetrack-shaped coil having both a curved portion and a straight portion, the curved portion has a uniform σr similar to that of a cylindrical coil. Is added to the superconducting wire,
In the straight line portion, σr is almost zero, and rather, a force acts in a direction in which the superconducting wire tends to float up, and it is very difficult to wind the straight line portion.

If the winding is performed in such a state, not only the dimensional accuracy cannot be maintained, but also impregnation failure,
Further, it may cause deterioration of superconducting properties, which is not preferable.

[0013]

Therefore, in the winding of the straight part, it is necessary to devise so that the straight part has a shape as designed.

However, as described above, when an external force is applied to a very thin and fragile superconducting wire, the superconducting characteristics are deteriorated.

Therefore, it is necessary to manufacture a superconducting coil by winding a straight portion by means of applying a strain smaller than the permissible strain of the superconducting wire. Has been done.

The above-mentioned problems are caused not only in the high-temperature superconducting wire but also in the conventional metal-based superconducting wire.
The same applies.

An object of the present invention is to provide a superconducting coil which is extremely reliable, compact, and capable of producing a highly-conformal superconducting coil having a high performance, and a method for producing the same.

[0018]

In order to achieve the above object, in the invention corresponding to claim 1, a constant tension is applied to a superconducting wire when the superconducting wire is wound to manufacture a superconducting coil. In this state, the winding die is wound while pressing the superconducting wire on a deformed winding die having a shape other than a cylindrical shape by a pressing jig.

Therefore, in the method for manufacturing a superconducting coil of the invention according to claim 1, the superconducting wire is deformed into a deformed winding form having a shape other than a cylindrical shape while a constant tension is applied to the superconducting wire. By pressing the superconducting wire with a pressing jig designed to prevent stress or strain from exceeding the allowable value, winding is performed while pressing the superconducting wire, which does not deteriorate the fragile superconducting wire and is extremely reliable. It is possible to manufacture a superconducting coil which is compact and has high performance, and which has a deformed shape such as a race track shape.

Further, in the invention according to claim 2, in the method for manufacturing a superconducting coil according to the invention according to claim 1, the shape of the deformed winding die is two semicircular portions and two straight lines connected to them. It has a race track shape consisting of parts.

Therefore, in the method for manufacturing a superconducting coil according to the second aspect of the present invention, the shape of the irregularly shaped winding die is made into a racetrack shape consisting of two semicircular portions and two straight portions, so that the superconducting coil is formed. When the wire rod is wound and rotated, the center of rotation is always the center of the semicircular portion, so that the wire can be evenly wound on the circumference, and deterioration of the superconducting wire rod can be prevented.

Further, in the invention according to claim 3, in the method for manufacturing a superconducting coil according to the invention according to claim 2, the inner radius of the semicircular portion of the deformed winding is equal to or larger than the allowable bending radius of the superconducting wire. I am trying to do it.

Therefore, in the method for manufacturing a superconducting coil according to the third aspect of the present invention, the superconducting wire is wound by setting the inner radius of the semi-circular portion of the deformed winding die to be not less than the allowable bending radius of the superconducting wire. Even when the superconducting wire is wound, it is possible to carry out the winding work without bending the bend radius below the permissible bending radius. Further, the superconducting wire can be maintained at a bending radius not smaller than the allowable bending radius without being disengaged from the deformed winding form, and deterioration of the superconducting wire can be prevented.

Furthermore, in the invention corresponding to claim 4, in the method for manufacturing a superconducting coil of the invention according to claim 2, the straight part of the deformed winding has a curvature larger than that of the inner radius of the semicircular part. It has a large gentle curvature.

Therefore, in the method for manufacturing a superconducting coil of the invention according to claim 4, the deformed winding linear portion has a gentle curvature larger than the curvature of the inner radius of the semicircular portion. Further, it is possible to improve the adhesion and fixability of the superconducting wire to the irregular shape winding die. In addition, the stress applied to the superconducting wire due to the electromagnetic force can be reduced as much as possible.

On the other hand, in the invention corresponding to claim 5, in the method for manufacturing a superconducting coil according to any one of claims 2 to 4, the two semi-circular portions of the odd-shaped winding form: The superconducting wire is wound around the center of each semicircle as the center of rotation, and when the rotation center axis moves from one semicircle to the other semicircle, the superconducting wire should be wound while pressing it in the irregular winding form. I have to.

Therefore, in the method for manufacturing a superconducting coil according to the fifth aspect of the present invention, in the two semi-circular portions of the deformed winding type, the superconducting wire rod is wound with the center of each semi-circle as the center of rotation and one half When the center axis of rotation moves from the circle to the other semi-circle, winding the superconducting wire while pressing it against the odd-shaped winding mold to further improve the tight adhesion of the superconducting wire to the odd-shaped winding mold. You can

Further, in the invention according to claim 6, in the method for manufacturing a superconducting coil according to any one of claims 1 to 5, a tape-shaped superconducting wire is used as the superconducting wire. It has a pancake roll configuration.

Therefore, in the method for manufacturing a superconducting coil according to the sixth aspect of the present invention, the tape-shaped superconducting wire is pancake-wound, so that the strain applied to the superconducting wire can be reduced and the superconducting wire can be reduced. Can be prevented from deteriorating.

Further, in the invention according to claim 7, in the method for manufacturing a superconducting coil according to the invention according to claim 6, a plurality of tape-shaped superconducting wires are wound.

Therefore, in the method for manufacturing a superconducting coil according to the seventh aspect of the invention, the current carrying capacity of the superconducting coil can be increased by winding a plurality of layers of the tape-shaped superconducting wire.

Furthermore, in the invention corresponding to claim 8, in the method for manufacturing a superconducting coil of the invention according to claim 6 or 7, the tape-shaped insulating material is used when winding the superconducting wire. I also try to roll it.

Therefore, in the method of manufacturing a superconducting coil of the invention according to claim 8, when winding the superconducting wire, the tape-shaped insulating material is also wound to form the interlayer insulating layer, Interlayer insulation can be realized.

On the other hand, in the invention corresponding to claim 9, in the method for manufacturing a superconducting coil of the invention according to any one of claims 1 to 8, when a superconducting wire is wound, a deformed winding is formed. The superconducting wire is wound while being pressed against the odd-shaped winding mold with a pressing jig at an attack angle that is greater than the tangential angle of the mold.

Therefore, in the method for manufacturing a superconducting coil of the invention according to claim 9, when the superconducting wire is wound, the superconducting wire is wound with a pressing jig with an attack angle larger than the tangential angle of the deformed winding type. By winding the wire while pressing it against the deformed winding die, it is possible to suppress the decrease in tension due to the friction between the superconducting wire before winding and the outer surface of the coil after winding.

Further, in the invention according to claim 10, in the method for manufacturing a superconducting coil according to any one of claims 1 to 9, the pressing jig is a deformed winding die. A roller that can control the pressing force of the superconducting wire is used.

Therefore, in the method of manufacturing a superconducting coil according to the tenth aspect of the present invention, the roller capable of controlling the pressing force of the superconducting wire with respect to the deformed winding is used as a pressing jig, so that the superconducting wire is always maintained. A constant pressing force can be applied and an appropriate pressing force can be realized, and a coil having a desired design can be manufactured with high precision.

Further, in the invention corresponding to claim 11,
In the method for manufacturing a superconducting coil of the invention according to the tenth aspect, the outer radius of the roller, which is the pressing jig, is set to be equal to or larger than the allowable bending radius of the superconducting wire.

Therefore, in the method for manufacturing a superconducting coil of the invention according to claim 11, the roller as the pressing jig has an outer radius not less than the allowable bending radius of the superconducting wire so that the superconducting wire is wound. It is possible to eliminate the risk that the superconducting wire will be bent below the allowable bending radius, and prevent deterioration of the superconducting wire.

On the other hand, in the invention corresponding to claim 12, the superconducting coil is manufactured by the method for manufacturing a superconducting coil according to any one of claims 1 to 11.

Therefore, in the superconducting coil of the invention according to claim 12, the superconducting coil is manufactured by the method for manufacturing a superconducting coil according to any one of the above inventions.
It is possible to realize a superconducting coil having a deformed shape that is extremely reliable, compact, and has high performance without degrading a fragile superconducting wire.

[0042]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, when a constant tension is applied to a superconducting wire, a pressing jig designed to prevent stress or strain exceeding a permissible value is applied to the superconducting wire. The superconducting coil having a deformed shape is manufactured by pressing the superconducting wire while pressing the wire onto the deformed winding mold having a shape other than the cylindrical shape to perform winding of the straight portion.

By taking the above means, it is possible to manufacture a superconducting coil having a deformed shape such as a race track shape without degrading the fragile superconducting wire.

Hereinafter, embodiments of the present invention based on the above concept will be described in detail with reference to the drawings.

(First Embodiment) FIG. 1 is a schematic diagram showing an example of the overall structure for realizing a method for manufacturing a superconducting coil according to the present embodiment, that is, a method for manufacturing a coil winding of a superconducting wire in a deformed shape. It is a figure.

As shown in FIG. 1, the superconducting coil manufacturing system includes a modified coil winding mold 100 which is a modified winding mold, a modified coil winding rotary winder 101, a modified coil winding slide machine 102, and a wire rod. It is composed of a delivery machine 103 and a constant tension tensioner 104.

Further, the winding controller 105 for controlling the winding rotation speed of the odd-shaped coil winding rotary winder 101, the winding tension, the sliding speed of the odd-shaped coil winding slide machine 102, and the like.
And wire rod feeder 103 and odd-shaped coil winding rotary winder 10
The tuning controller 106 for tuning the speed of No. 1 is provided as a system controller.

That is, the odd-shaped coil winding die 100, which winds the superconducting wire 1 as a coil, is loaded on the odd-shaped coil winding slide 102 so that the odd-shaped coil winding follows the sliding motion of the odd-shaped coil winding slide 102. The mold 100 also slides.

Further, the odd-shaped coil winding type slide machine 102
Is loaded on the odd-shaped coil winding rotary winder 101, so that the odd-shaped coil winding mold 100 and the odd-shaped coil winding slide device 102 rotate according to the rotational movement of the odd-shaped coil winding rotary winder 101. It is like this.

Furthermore, the superconducting wire 1 is a wire rod feeder 10.
3 is wound up on the deformed coil winding mold 100, but the superconducting wire 1 is fixed by arranging the constant tension tensioner 104 at a substantially intermediate point between the wire rod feeder 103 and the deformed coil winding mold 100. Tension tensioner 10
Deformed coil winding form 10 while applying constant tension via 4
The superconducting wire 1 is wound up to 0 so that it can maintain a constant tension.

The odd-shaped coil winding die 100 has a winding die having a shape other than a cylindrical shape.

Although not shown in FIG. 1, a pressing jig for pressing the superconducting wire 1 onto the deformed coil winding die 100 when winding the superconducting wire 1 onto the deformed coil winding die 100. A push roller is attached to a modified coil winding form 100.
Prepare for the vicinity.

On the other hand, control of the speed, operation / stop and stroke of the sliding motion of the odd-shaped coil winding slide machine 102, and control of the speed, operation / stop and the rotational angle of the rotational movement of the odd-shaped coil winding rotary winder 101. Further, the position control of the constant tension tensioner 104 and the like are controlled by the winding controller 105 that is electrically connected.

The tuning controller 106, which is electrically connected, controls the winding tuning and system control of the wire rod feeder 103 and the irregular coil winding type rotary winding machine 101.

Next, a method of manufacturing the superconducting coil according to the present embodiment having the above system configuration will be described.

In FIG. 1, the odd-shaped coil winding die 1 is moved according to the sliding movement of the odd-shaped coil winding slide machine 102.
00 also slides.

The odd-shaped coil winding die 100 and the odd-shaped coil winding slide machine 102 are the odd-shaped coil winding rotary winder 10
Rotational movement follows the rotational movement of 1.

The superconducting wire 1 is sent out from the wire feeder 103 and wound on the odd-shaped coil winding form 100.

In this case, a constant tension tensioner 104 is arranged between the wire rod feeder 103 and the odd-shaped coil winding die 100, and the winding is formed near the odd-shaped coil winding die 100 having a shape other than a cylindrical shape. By arranging a pressing roller which is a pressing jig, the superconducting wire 1 is
The superconducting wire 1 is wound while maintaining a constant tension while being applied with a constant tension by the constant tension tensioner 104 and while being pressed against the odd-shaped coil winding 100 by a pressing roller. You can line.

As a result, it is possible to manufacture a superconducting coil having a deformed shape, which is extremely reliable, compact, and high in performance, without degrading the fragile superconducting wire 1.

In the above description, the winding controller 105 controls the speed, operation / stop, and stroke of the sliding motion of the odd-shaped coil winding slide device 102, and controls the rotational motion of the odd-shaped coil winding rotary winder 101. Control of speed, operation / stop, and rotation angle, position control of the constant tension tensioner 104, and the like are performed, and the tuning controller 106 synchronizes the winding of the wire rod feeder 103 and the odd-shaped coil winding rotary winder 101. System control is performed.

As described above, in the present embodiment, when the superconducting wire 1 is wound to manufacture the superconducting coil, the winding is made to have a shape other than the cylindrical shape with a certain tension applied to the superconducting wire 1. Since the superconducting wire rod 1 is wound on the deformed coil winding die 100 having a shape while pressing the superconducting wire rod 1 with a pressing roller that is a pressing jig, the fragile superconducting wire rod 1 is not deteriorated and extremely reliable. It is possible to manufacture a superconducting coil with a high profile, which is compact and has high performance.

(Second Embodiment) FIG. 2 shows a configuration example of a slide stroke for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding of a superconducting wire into a deformed shape. It is a schematic diagram shown, the same portions as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted. Here, only different portions will be described.

That is, the method for manufacturing the superconducting coil according to the present embodiment is the same as the method for manufacturing the superconducting coil according to the first embodiment described above, except that the shape of the odd-shaped coil winding 100 is set to 2 as shown in FIG. A rigid frame having a racetrack shape composed of one semicircular portion and two linear portions connected to the semicircular portion is formed, and the rigid frame is loaded on the odd-shaped coil winding slide machine 102.

Here, the odd-shaped coil winding type slide machine 102
Is configured so that it can slide (stroke) in the range "S" from the center of one semi-circle portion to the center of the other semi-circle portion of the racetrack-shaped deformed coil winding die 100, and When the stroke reaches the center, the position is detected, the slide movement is stopped, and control is performed so as to shift to the rotation movement.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, the deformed coil winding die 100 is formed into a racetrack shape consisting of two semicircular portions and two linear portions, When the superconducting wire 1 is wound and rotated, the center of rotation is always the center of the semi-circular portion, and therefore, it is possible to wind it evenly on the circumference.

As a result, a racetrack-shaped superconducting coil can be manufactured without degrading the fragile superconducting wire 1.

As described above, according to the present embodiment, the superconducting coil having the race track shape can be manufactured without any deterioration of the fragile superconducting wire 1 because the winding can be performed evenly on the circumference. It will be possible.

(Third Embodiment) FIG. 3 shows a structure of a winding cross-section flange for realizing a method for manufacturing a superconducting coil according to the present embodiment, that is, a method for manufacturing a coil winding of a superconducting wire in a deformed shape. FIG. 3 is a schematic diagram showing an example, the same portions as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof will be omitted. Here, only different portions will be described.

That is, the method for manufacturing the superconducting coil according to the present embodiment is the same as the method for manufacturing the superconducting coil according to the second embodiment, as shown in FIG. The inner radius is set to be equal to or larger than the allowable bending radius of the superconducting wire 1.

Further, so that the width of the superconducting wire 1 is sandwiched,
A winding flange 107 is attached.

In the method for manufacturing a superconducting coil according to the present embodiment as described above, the inner radius of the semicircular portion of the modified coil winding die 100 is set to be equal to or larger than the allowable bending radius of the superconducting wire 1 and is rigid. As a result, even when the superconducting wire 1 is wound, it is possible to perform the winding operation without bending the superconducting wire 1 within the allowable bending radius.

Further, as shown in FIG. 3, the superconducting wire 1
By mounting the winding flange 107 so as to sandwich the width, the superconducting wire 1 can maintain the bending radius R equal to or larger than the allowable bending radius without coming off from the deformed coil winding die 100.

Thus, a racetrack-shaped superconducting coil can be manufactured without degrading the fragile superconducting wire 1.

As described above, in the present embodiment, even when superconducting wire 1 is wound, the winding work can be performed without bending the superconducting wire 1 below the allowable bending radius. It is possible to maintain a bending radius R equal to or larger than the allowable bending radius without deviating from 100, and to manufacture a racetrack-shaped superconducting coil without degrading the fragile superconducting wire 1.

(Fourth Embodiment) The method for manufacturing a superconducting coil according to the present embodiment is the same as the method for manufacturing a superconducting coil according to the above-described second embodiment. A straight portion connecting the circular portion and the semicircular portion has a gentle curvature, that is, a straight portion of the deformed coil winding 100 has a convex portion with a gentle curvature larger than the curvature of the inner radius of the semicircular portion. I am trying.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, the straight portion of the deformed coil winding die 100 has a convex portion with a gentle curvature larger than the curvature of the inner radius of the semicircular portion. Therefore, the constant tension is applied to the superconducting wire 1 even in the straight portion, and the superconducting wire 1 is prevented from floating and being fixed.
It is possible to improve the close-adhesion fixing property to the odd-shaped coil winding form 100.

Further, the stress applied to the superconducting wire 1 due to the electromagnetic force can be reduced as much as possible.

As described above, according to the present embodiment, it is possible to improve the adhesiveness of the superconducting wire 1 to the odd-shaped coil winding die 100, and further, to minimize the stress applied to the superconducting wire 1 with the electromagnetic force. It is possible to reduce the number, and it is possible to manufacture a racetrack-shaped superconducting coil without degrading the fragile superconducting wire 1.

(Fifth Embodiment) A method of manufacturing a superconducting coil according to the present embodiment is shown in FIG. 2 in the method of manufacturing a superconducting coil according to any one of the second to fourth embodiments described above. As described above, when the odd-shaped coil winding slide machine 102 slides from one semicircle to the other semicircle, the sensor mechanism 108 detects the center of the semicircle.
When the sensor mechanism 108 detects it, the winding controller 105 stops the odd-shaped coil winding slide machine 102 at that position, and shifts to the rotational movement of the next step.

Further, when the odd-shaped coil winding type slide machine 102 slides on the linear portion, as described in the fourth embodiment, it is a jig for pressing the winding flange 107 from above. The push roller 109 is dropped, and the weight of the push roller 109 is applied to the superconducting wire 1.

In the method of manufacturing the superconducting coil according to the present embodiment as described above, the two-dimensional coil winding mold 100 is used.
In the two semicircular portions, the superconducting wire rod 1 is wound around the center of each semicircle, and the superconducting wire rod 1 is coiled with a deformed coil when the rotation center axis moves from one semicircular portion to the other semicircular portion. Since the winding is performed while pressing it against the die 100, the pushing roller 109 is dropped into the winding flange 107 from above, and the weight of the pushing roller 109 is applied to the superconducting wire 1 so that the superconducting wire 1 is wound in a deformed coil. By acting as a pressing force on the straight portion of the die 100 to bring them into close contact, it is possible to further improve the tight adhesion of the superconducting wire 1 to the odd-shaped coil winding die 100.

As described above, in the present embodiment, the tight fixing property of the superconducting wire rod 1 to the odd-shaped coil winding die 100 can be further improved than the above, and the fragile superconducting wire rod 1 is not deteriorated and the race is prevented. It is possible to manufacture a track-shaped superconducting coil.

(Sixth Embodiment) FIG. 4 shows a method of manufacturing a superconducting coil according to this embodiment, that is, a method of manufacturing a coil winding of a superconducting wire into a deformed shape. FIG. 4 is a schematic diagram showing a configuration example, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof will be omitted. Here, only different parts will be described.

That is, the method of manufacturing the superconducting coil according to the present embodiment is the same as the method of manufacturing the superconducting coil according to any one of the first to fifth embodiments described above.
As shown in FIG. 4, as the superconducting wire 1, a flat superconducting wire 1 in a tape shape is used to form a pancake winding structure.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, the tape-shaped superconducting wire 1 is used.
Is configured to have a pancake winding (multilayer winding) with the odd-shaped coil winding die 100 as a core, it is possible to configure a pancake-shaped superconducting coil whose thickness corresponds to the width of the superconducting wire 1. .

As a result, the strain applied to the superconducting wire 1 can be reduced and the deterioration of the superconducting wire 1 can be prevented.

As described above, in the present embodiment, the strain applied to the superconducting wire 1 can be reduced, and a deformed superconducting coil such as a racetrack shape is manufactured without degrading the fragile superconducting wire 1. It becomes possible to do.

(Seventh Embodiment) FIG. 5 shows a structural example for realizing a method for manufacturing a superconducting coil according to the present embodiment, that is, a method for manufacturing a coil winding of a plurality of superconducting wires in a deformed shape. It is a schematic diagram, and the same portions as those in FIG. 4 are denoted by the same reference numerals, and the description thereof will be omitted. Here, only different portions will be described.

That is, the method of manufacturing the superconducting coil according to the present embodiment is the same as the method of manufacturing the superconducting coil according to the sixth embodiment, as shown in FIG. Tension tensioner 10
4 are arranged so that the tape-shaped superconducting wire 1 is wound in plural layers.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, the tape-shaped superconducting wire 1 is wound in a plurality of layers, so that the tape-shaped superconducting wire 1 is as shown in FIG. In addition, it is possible to perform layer winding in a state where the number of sheets to be wound is laminated.

In this case, the number of the modified coil winding type rotary winding machine 101 is one, but all the wire rod feeding devices 103 and the constant tension tensioners 104 are the modified coil winding type rotary winding machine 101 and the winding control. By controlling via the machine 105, just as in the case of one tape-shaped superconducting wire 1, a plurality of superconducting wires 1 can be synchronously wound without any problem while maintaining a constant tension.

As a result, the current carrying capacity of the superconducting coil can be increased.

As described above, in the present embodiment, the current carrying capacity of the superconducting coil can be increased, and a deformed superconducting coil such as a race track shape is manufactured without degrading the fragile superconducting wire 1. It becomes possible to do.

(Eighth Embodiment) The method for manufacturing a superconducting coil according to the present embodiment is the same as the method for manufacturing a superconducting coil according to the sixth or seventh embodiment described above, as shown in FIG. When winding the wire rod 1, a tape-shaped insulating material (hereinafter referred to as an insulating tape) 2 is also wound.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, when the superconducting wire 1 is wound, the insulating tape 2 is also wound, that is, the uppermost layer of the superconducting wire 1 arranged in plural. When the insulating tape 2 is used as a tape and the insulating tape 2 is wound in layers at the same time, when a plurality of superconducting wire rods 1 are wound in layers,
It becomes possible to realize interlayer insulation by forming an interlayer insulation layer.

As described above, in the present embodiment, the interlayer insulating layer can be formed to realize the interlayer insulation, and without deforming the fragile superconducting wire 1, the superconducting material having a deformed shape such as a race track shape is formed. It becomes possible to manufacture a coil.

(Ninth Embodiment) FIG. 6 shows an example of the structure of the attack angle for realizing the method for manufacturing a superconducting coil according to the present embodiment, that is, the method for manufacturing a coil winding of a superconducting wire in a deformed shape. It is a schematic diagram shown, and the same portions as those in FIGS. 1 to 5 are denoted by the same reference numerals and the description thereof will be omitted. Here, only different portions will be described.

That is, the method of manufacturing the superconducting coil according to the present embodiment is the same as the method of manufacturing the superconducting coil according to any one of the first to eighth embodiments described above.
As shown in FIG. 6, the guide roller 110 is arranged on the incident side of the superconducting wire rod 1 to the odd-shaped coil winding die 100, and when the superconducting wire rod 1 is wound, the tangential angle of the odd-shaped coil winding die 100 or more With the attack angle θ, the superconducting wire 1 is wound while being pressed against the odd-shaped coil winding mold 100 by the pressing roller 109 which is a pressing jig.

In the method for manufacturing the superconducting coil according to the present embodiment as described above, when winding the superconducting wire 1, the guide roller 110 makes an attack angle θ equal to or larger than the tangent angle of the odd-shaped coil winding die 100. Since the superconducting wire 1 is wound while being pressed against the deformed coil winding die 100 by the pressing roller 109 which is a pressing jig, the pressing roller 1 is wound especially when winding a straight portion of a race track shape.
Since the pressing force of 09 can be effectively applied, it is possible to suppress a decrease in tension due to friction between the superconducting wire 1 before winding and the outer surface of the coil after winding.

By controlling the rotation angle of the odd-shaped coil winding rotary winder 101 and the slide stroke of the odd-shaped coil winding slide machine 102, the superconducting wire 1 incident on the odd-shaped coil winding die 100 can be controlled. It is possible to realize a constant attack angle θ as the incident angle.

As described above, in the present embodiment, it is possible to suppress the decrease in tension due to the friction between the superconducting wire 1 before winding and the outer surface of the coil after the winding, so that the fragile superconducting wire 1 It is possible to manufacture a superconducting coil having a deformed shape such as a race track shape without deteriorating the temperature.

(Tenth Embodiment) A method for manufacturing a superconducting coil according to the present embodiment is shown in FIG. 4 in the method for manufacturing a superconducting coil according to any one of the first to ninth embodiments. As described above, the pressing roller 109 is used as a pressing jig, and the pressing roller 109 and the weight 111 are connected to each other by the counterweight, and the pressing roller 10 is connected.
The pressing force of the superconducting wire rod 1 against the odd-shaped coil winding die 100 can be controlled by the balance between the own weight of 9 and the own weight of the weight 111.

In the method of manufacturing a superconducting coil according to the present embodiment as described above, the pressing roller 1 capable of controlling the pressing force of the superconducting wire rod 1 against the deformed coil winding die 100 is used.
Since 09 is used as a pressing jig, a constant pressing force can be constantly applied to the superconducting wire 1 by the balance between the own weight of the pressing roller 109 and the own weight of the weight 111, and By controlling the own weight, it becomes possible to realize an appropriate pressing force.

As described above, in the present embodiment, it is possible to apply a constant pressing force to the superconducting wire 1 at all times and to realize an appropriate pressing force.
It is possible to manufacture a superconducting coil having a deformed shape such as a race track shape without degrading the fragile superconducting wire 1.

(Eleventh Embodiment) The method for manufacturing a superconducting coil according to the present embodiment is the same as the method for manufacturing a superconducting coil according to the tenth embodiment, as shown in FIG. The outer radius of the push roller 109 is set to be equal to or larger than the allowable bending radius of the superconducting wire 1.

In the method of manufacturing the superconducting coil according to the present embodiment as described above, the radius of the pushing roller 109 is set to be larger than the allowable bending radius of the superconducting wire 1, so that the attack angle θ described above is set. Even if it becomes large, it is possible to eliminate the risk that the superconducting wire 1 will be bent at an allowable bending radius or less during winding.

As a result, deterioration of the superconducting wire 1 can be prevented.

As described above, in the present embodiment, even if the attack angle θ becomes large, it is possible to eliminate the risk that the superconducting wire 1 will be bent at the allowable bending radius or less during winding, and the fragile superconducting wire 1 Without degrading the wire 1.
It is possible to manufacture a superconducting coil having a deformed shape such as a racetrack shape.

(Twelfth Embodiment) In this embodiment, a superconducting coil is manufactured by the method for manufacturing a superconducting coil according to any one of the first to eleventh embodiments described above.

Since the superconducting coil is manufactured by the method for manufacturing the superconducting coil as described above, the brittle superconducting wire 1 is not deteriorated, and it is extremely reliable, compact, and high in performance. It is possible to realize a superconducting coil having an irregular shape.

(Other Embodiments) It should be noted that the present invention is not limited to the above-described embodiments, and can be variously modified and carried out at the stage of carrying out the invention without departing from the spirit thereof. Is. For example, in the above embodiments,
The shape of the deformed coil winding die 100 is a race track shape including two semicircular portions and two straight portions connected to the semicircular portions, but the shape is not limited to this, and the deformed coil has a shape other than a cylindrical shape. Any shape other than the racetrack shape may be used as long as it is a winding type.

Further, the respective embodiments may be combined as appropriate as much as possible, and in that case, the combined effects can be obtained. Further, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some components are deleted from all the components shown in the embodiment,
If at least one of the problems described in the section of the problem to be solved by the invention can be solved and the effect (at least one) described in the section of the effect of the invention can be obtained, this constituent element The configuration in which is deleted can be extracted as an invention.

[0114]

As described above, according to the superconducting coil and the method of manufacturing the same of the present invention, when the superconducting wire is wound to manufacture the superconducting coil, a constant tension is applied to the superconducting wire. Since the winding die is wound while pressing the superconducting wire with the pressing jig on the odd-shaped winding die having a shape other than the cylindrical shape, the reliability is extremely high.
In addition, it is possible to manufacture a compact superconducting coil with high performance.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a first embodiment for realizing a method for manufacturing a superconducting coil according to the present invention.

FIG. 2 is a schematic diagram showing a second embodiment for realizing the method for manufacturing a superconducting coil according to the present invention.

FIG. 3 is a schematic diagram showing a third embodiment for realizing the method for manufacturing a superconducting coil according to the present invention.

FIG. 4 is a schematic view showing a sixth embodiment for realizing the method for manufacturing a superconducting coil according to the present invention.

FIG. 5 is a schematic diagram showing a seventh embodiment for realizing the method for manufacturing a superconducting coil according to the present invention.

FIG. 6 is a schematic diagram showing a ninth embodiment for realizing the method for manufacturing a superconducting coil according to the present invention.

[Explanation of symbols]

1 ... Superconducting wire 2 ... Insulation tape 100 ... Deformed coil winding type 101 ... Deformed coil winding type rotary winding machine 102 ... Deformed coil winding slide machine 103 ... Wire feeding machine 104 ... Constant tension tensioner 105 ... Winding controller 106 ... Tuning controller 107 ... Winding flange 108 ... Sensor mechanism 109 ... Push roller 110 ... Guide roller 111 ... weight.

Continued front page    (72) Inventor Katsuyuki Kuwano             1-4, Mei Station, Nakamura-ku, Nagoya City, Aichi Prefecture               Tokai Passenger Railway Co., Ltd. (72) Inventor Kenji Tasaki             2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa               Toshiba Keihin Office (72) Inventor Taizo Tosaka             2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa               Toshiba Keihin Office (72) Inventor Makoto Kyoto             2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa               Toshiba Keihin Office (72) Inventor Kiyohiko Kitagawa             2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa               Toshiba Keihin Office (72) Inventor Toru Kuriyama             2-4 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa               Toshiba Keihin Office

Claims (12)

[Claims] 1. A method for manufacturing a superconducting coil by winding a superconducting wire, comprising: pressing a deformed winding form having a shape other than a cylindrical shape with a constant tension applied to the superconducting wire. A method for manufacturing a superconducting coil, wherein winding is performed while pressing the superconducting wire with a jig. 2. The method for manufacturing a superconducting coil according to claim 1, wherein the deformed winding die has a racetrack shape including two semicircular portions and two linear portions connected to the semicircular portions. A method for manufacturing a superconducting coil, characterized in that 3. The method for manufacturing a superconducting coil according to claim 2, wherein the inner radius of the semicircular portion of the deformed winding is set to be equal to or larger than the allowable bending radius of the superconducting wire. Superconducting coil manufacturing method. 4. The method for manufacturing a superconducting coil according to claim 2, wherein the deformed winding linear portion has a gentle curvature larger than a curvature of an inner radius of the semicircular portion. And a method for manufacturing a superconducting coil. 5. The method according to any one of claims 2 to 4.
In the method for manufacturing a superconducting coil according to the item, in the two semi-circular portions of the deformed winding type, the superconducting wire rod is wound around the center of each semi-circle as a rotation center, and one semi-circular portion to the other semi-circular portion. When the central axis of rotation moves, the superconducting wire is wound while being pressed against the deformed winding die. 6. The method according to any one of claims 1 to 5.
The method for manufacturing a superconducting coil according to the item 1, wherein a tape-shaped superconducting wire is used as the superconducting wire, and a pancake winding structure is used. 7. The method of manufacturing a superconducting coil according to claim 6, wherein the tape-shaped superconducting wire is wound in a plurality of layers. 8. The method for manufacturing a superconducting coil according to claim 6 or 7, wherein a tape-shaped insulating material is also wound when winding the superconducting wire. Superconducting coil manufacturing method. 9. The method according to any one of claims 1 to 8.
In the method for manufacturing a superconducting coil according to the item, while winding the superconducting wire, while pressing the superconducting wire with the pressing jig at an attack angle of a tangent angle or more of the deformed winding die, while pressing the superconducting wire on the deformed winding die. A method for manufacturing a superconducting coil, characterized in that the coil is wound. 10. The method for manufacturing a superconducting coil according to claim 1, wherein the pressing jig can control the pressing force of the superconducting wire with respect to the deformed winding die. A method of manufacturing a superconducting coil, characterized in that a roller is used. 11. The method for manufacturing a superconducting coil according to claim 10, wherein an outer radius of the roller, which is the pressing jig, is equal to or larger than an allowable bending radius of the superconducting wire. Superconducting coil manufacturing method. 12. A superconducting coil manufactured by the method for manufacturing a superconducting coil according to any one of claims 1 to 11.