JPH05284730A - Method of assembling superconductive coil device - Google Patents

Abstract

PURPOSE:To prevent the shifting of the pad in a transit part and raise the reliability of the interlayer insulation of the transit part and enable winding work efficiently by arranging the transit parts of a superconductive coil densely in the straight part of the coil on one side, and setting the interlayer insulator of the transit part at normal temperature in the condition that it is wound on a temporary bobbin. CONSTITUTION:Superconductive coils 3 are wound in plural rows and layers on a temporary bobbin 9. In this winding, a normal-temperature setting adhesive 11 is applied in advance to the surface of the interlayer insulator of the superconductive coil 3 at the transit parts 10 arranged densely at the center of the of the straight part on one side. This adhesive agent 11 is set at normal temperature, and the interlayer insulators fabricated by winding tapes impregnated with thermosetting resin are bonded to each other and set, and the superconductive coil 3 in plural rows and layers at the transit part and the pad in the transit part adhere to each other. Then, the superconductive coil 3 is removed from the temporary bobbin 9, and they are assembled into a coil mounting frame. Hereby, the reliability of the interlayer insulation of the transit part increases, and the work efficiency in winding work improves.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of assembling a superconducting coil device for mounting a superconducting coil on a coil mounting frame.

[0002]

2. Description of the Related Art Conventionally, as a superconducting coil of this type, there is a superconducting coil used for a rotor coil of a superconducting generator shown in FIGS. 5 to 10 disclosed in JP-A-61-18343, for example. It was FIG. 5 is a perspective view showing a coil mounting frame. In the figure, 1 is a coil mounting frame, 2 is a slot formed in the coil mounting frame 1, and is composed of a straight portion 2a, an arc portion 2b, and a corner portion 2c. There is. 6 is shown in FIG.
6 is a sectional view taken along line VI-VI in FIG. 1, in which 1 is a coil mounting frame, 2 is a slot, 3 is a superconducting coil, 4 is a wedge,
Reference numeral 5 is wedge insulation, and 6 is insulation. FIG. 7 is a front view of the superconducting coil 3 of FIG. 6, in which 7 is a superconducting wire and 8 is interlayer insulation. FIG. 8 is a perspective view showing a temporary reel, and in the figure, 9 is a temporary reel. FIG. 9 shows IX- in FIG.
FIG. 9 is a cross-sectional view taken along line IX, in which 9 is a temporary reel and 3
Is a superconducting coil. FIG. 10 is a perspective view showing the superconducting coil removed from the temporary winding frame. In the figure, 3 is a superconducting coil, which is composed of a straight portion 3a, an arc portion 3b, and a corner portion 3c. 10 is a dislocation part. The resin of the interlayer insulation 8 is hardened by assembling the superconducting coil 3 into the slot 2 formed in the outer peripheral portion of the coil mounting frame 1 and after the coil mounting frame 1 is assembled.
Is performed by heating.

Next, the operation will be described. In the superconducting coil having the above configuration, as shown in FIGS. 8 and 9, the superconducting coil 3 is wound around the rectangular temporary winding frame 9 in advance, and then removed from the temporary winding frame 9 as shown in FIG. Straight portion 3a, arc portion 3b, corner portion 3c, and dislocation portion 10
Are assembled in the slots 2 formed in the outer peripheral portion of the coil mounting frame 1. FIG. 6 shows a state in which the superconducting coil 3 is assembled in the slot 2 formed in the outer peripheral portion of the coil mounting frame 1. In the figure, the superconducting coil 3 is insulated from the ground with respect to the coil mounting frame 1 by wedge insulation 5 and insulation 6, and is firmly held by the coil mounting frame 1 by the wedge 4. As shown in FIG. 7, the superconducting coil 3 includes a superconducting wire 7 and a superconducting wire 7.
It is formed by interlayer insulation 8 in which a thermosetting resin impregnated tape is spirally wound, and is formed by winding a plurality of rows and a plurality of layers on the coil mounting frame 1.

[0004]

In the conventional superconducting coil constructed as described above, when the superconducting coil 3 is removed from the temporary winding frame 9 and assembled into the coil mounting frame 1, the dislocation portion is formed.
Since the claws of 10 (not shown) were not fixed, the claws of the dislocation part 10 were likely to move and a short circuit between layers was likely to occur. Further, since the dislocation parts 10 are dispersed, a wide range of the superconducting coil 3 is fixed and assembled to the coil mounting frame 1, so that there is a problem that a great amount of labor is spent on winding work.

The present invention has been made to solve the above problems, and provides a method of assembling a superconducting coil device which enhances the reliability of interlayer insulation of dislocation portions and enables efficient winding work. The purpose is to

[0006]

In the method of assembling a superconducting coil device according to the present invention, the dislocation portions of the superconducting coil are densely arranged on one side of the coil straight portion, and the interlayer insulating surface of the dislocation portion is cured at room temperature. Is additionally applied and wound around a temporary winding frame, and after the dislocation portion is cured at room temperature, it is assembled on the coil mounting frame.

[0007]

In the method for assembling the superconducting coil device according to the present invention, the dislocation portions of the superconducting coil are densely arranged on one side of the coil straight portion, and the interlayer insulation of the dislocation portion is cured at room temperature while being wound around the temporary winding frame. As a result, the dislocation section tabs are fixed, and the dislocation section tabs can be prevented from moving during assembly to the coil mounting frame.

[0008]

EXAMPLES Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a state in which a superconducting coil is wound on a temporary bobbin, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, in which 3 is a superconducting coil and 10 is a dislocation part of the superconducting coil 3. And are densely arranged in the center of the straight part on one side. Reference numeral 9 is a temporary reel, and 11 is a room temperature curable adhesive applied to the interlayer insulating surface of the dislocation portion 10.

Next, the operation will be described. Superconducting coils 3 are wound around the temporary winding frame 9 in a plurality of rows and a plurality of layers. At the time of this winding, the room temperature curable adhesive 11 is applied to the interlayer insulating surface of the superconducting coil 3 in the dislocation portion 10.

By curing the adhesive 11 at room temperature,
The interlayer insulations 8 formed by winding the heat-curable resin-impregnated tape are adhesively cured, and the superconducting coils 3 and the dislocation portion tabs of a plurality of rows and a plurality of layers in the dislocation portion 10 are fixed. After that, the superconducting coil 3 is removed from the temporary winding frame 9 and assembled into the coil mounting frame 1.

Embodiment 2. Since the room temperature curable adhesive 11 is applied only to the surface of the inter-layer insulation 8, its adhesive force is smaller than that when the thermosetting resin impregnated in the inter-layer insulation 8 is cured and adheres the superconducting wire 7. Therefore, although it is possible to prevent the dislocation portion claws from moving, the coil of the dislocation portion may come apart when the dislocation portion is housed in the slot. FIG. 3 is a perspective view showing a second embodiment of the present invention. In the figure, reference numeral 12 denotes both ends of a straight line portion provided with a dislocation portion, and a high strength tape such as glass fiber tape is wound around the coil 3
It is a tape that binds. Further, 13 is a tightening jig for compressing the four surfaces of the straight line portion. FIG. 4 is a diagram showing an example of a tightening jig. In the figure, 14 and 15 are thick plates for compressing the coil in the width direction and the height direction, respectively, and 16 is a jig for applying a compressive force, which uses a vise or a spring. When the dislocation is completed and the room temperature curable adhesive 11 is applied and cured, the fastening jig 13 is attached. In that state, the coil is removed from the temporary reel. Since the coil 3 tends to separate from the corner portion, the tape 12 firmly fixes both sides of the straight portion 3a. Immediately before putting it into the slot, the fastening jig 13 is removed, and the dislocation part 10 is first stored in the slot. After storing, the coil 3 is firmly held by the tab 5 in the slot, and the coil 3
Prevents the shape of.

[0012]

As described above, according to the present invention, the dislocation portions of the superconducting coil are densely arranged on the coil straight portion on one side, and the interlayer insulation of the dislocation portions is wound around the temporary winding frame at room temperature. After curing, the coil mounting frame is assembled, so that the claws in the dislocation portion do not move, and the dislocation portion is firmly held by the jig so that the dislocation portion does not come apart. As a result, the reliability of the interlayer insulation of the dislocation portion is enhanced, and the workability of winding work is significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembly method according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view showing an assembly method according to a second embodiment of the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a perspective view showing a conventional superconducting coil mounting frame.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a front view of a superconducting coil according to a conventional assembly method.

FIG. 8 is a perspective view showing a temporary winding frame of a conventional superconducting coil assembling method.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a perspective view of a superconducting coil from which a temporary winding frame of a conventional assembling method is removed.

[Explanation of symbols]

 3 Superconducting coil 9 Temporary reel 10 Dislocation 11 Room temperature curable adhesive 12 Tape 13 Tightening device

Claims (2)

[Claims] 1. A superconducting coil formed by winding a plurality of rows and a plurality of layers of superconducting wires housed in a slot, the coil mounting frame having a lot having a straight portion and an arc portion on an outer peripheral portion. And an interlayer insulation formed by spirally winding a thermosetting resin-impregnated tape around the superconducting wire, and winding the superconducting wire around a rectangular temporary winding frame in advance, and then removing it from the temporary winding frame, and In the method of assembling the superconducting coil device assembled to the coil mounting frame, dislocation portions of the superconducting coil are densely arranged on one side of the coil straight portion, and a room temperature curable adhesive is applied to the surface of the interlayer insulation of the dislocation portion. A method of assembling a superconducting coil, which comprises winding on a temporary winding frame, curing the dislocation portion, and then assembling the coil mounting frame. 2. A straight part having a dislocation part is tightly bound at both ends with a tape, and four surfaces of the straight part are compressed from thick plates and removed from the temporary winding frame and stored in a slot. A method for assembling the superconducting coil device described.