KR101665038B1 - electrically conductive material impregnated no-insulation superconducting coil and manufacturing apparatus of the same - Google Patents

electrically conductive material impregnated no-insulation superconducting coil and manufacturing apparatus of the same Download PDF

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Publication number
KR101665038B1
KR101665038B1 KR1020160003285A KR20160003285A KR101665038B1 KR 101665038 B1 KR101665038 B1 KR 101665038B1 KR 1020160003285 A KR1020160003285 A KR 1020160003285A KR 20160003285 A KR20160003285 A KR 20160003285A KR 101665038 B1 KR101665038 B1 KR 101665038B1
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Prior art keywords
conductive
superconducting wire
superconducting
impregnated layer
disposed
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KR1020160003285A
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Korean (ko)
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황영진
박승영
장재영
이상갑
김동락
이지호
김그라시아
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한국기초과학지원연구원
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Priority to PCT/KR2016/015203 priority patent/WO2017122947A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/02—Single bars, rods, wires, or strips
    • H01B5/04—Single bars, rods, wires, or strips wound or coiled

Abstract

The present invention discloses a non-insulated superconducting coil and an apparatus for manufacturing the same. The coil includes a bobbin, a superconducting wire wound on the bobbin by a plurality of adjacent winding turns, and a conductive impregnated layer disposed between the plurality of adjacent winding turns of the superconducting wire. The conductive impregnated layer has a higher resistance than the resistance of the superconducting wire and can electrically conduct between a plurality of adjacent winding turns of the superconducting wire when a hot spot is generated by a local defect of the superconducting wire.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-insulated superconducting coil impregnated with a conductive material,

The present invention relates to a non-insulated superconducting coil impregnated with a conductive material, and to an apparatus for manufacturing the same. More particularly, the present invention relates to a non-insulated superconducting coil which protects an insulated superconducting coil from mechanical stress, The present invention relates to a technique capable of maintaining a self-protection characteristic against a tooth having a tooth.

Superconductors can cause permanent damage to the superconductor due to local accumulation of heat during the generation of heat. Therefore, it is necessary to provide a protection technology for stable operation of the system when manufacturing a coil using a superconductor. In recent years, non-insulated winding technology has been developed that does not insert inter-turn insulation materials as a means of protecting superconducting coils. By applying this technology, excessive heat and current generated during the turn can be automatically bypassed through mechanical / electrical contact between adjacent turns, so that stable operation of the superconducting coil is possible without additional protection. This is possible.

In the superconducting coil, a magnetic field is generated in proportion to the number of turns and the current of the winding, and thus an electromagnetic force is generated. At this time, the coil moves due to the electromagnetic force generated, and a voltage due to the frictional heat is generated, so that the superconducting state can not be maintained. For this reason, when a superconducting wire is used to manufacture a coil, an impregnation material such as an epoxy that can securely fix the coil structurally is necessary.

Since the conventional epoxy impregnated material is an insulating material, when the non-insulating superconducting coil is impregnated with the insulating material, the epoxy acts as an insulating material between the turns in the superconducting coil, thereby causing a problem of deteriorating the non-insulating property of the non-insulating superconducting coil.

In addition, it is difficult to predict the field charge / discharge delay of the superconducting coil because it is difficult to control the contact resistance between turns in the conventional non-insulated superconducting coil.

Disclosure of Invention Technical Problem [8] The present invention provides a method of overcoming the problem that it is impossible to impregnate windings during the manufacture of a non-insulated superconducting coil and improving the mechanical safety of the non-insulated superconducting coil.

According to an aspect of the present invention, there is provided a non-insulated superconducting coil impregnated with a conductive material, comprising: a bobbin; A superconducting wire wound on the bobbin by a plurality of adjacent winding turns; And a conductive impregnated layer disposed between the plurality of adjacent winding turns of the superconducting wire. The conductive impregnated layer may include: a polymer layer; Conductive particles mixed in the polymer layer; And conductive balls disposed in the polymer layer and having a diameter greater than the diameter of the conductive particles. Each of the conductive balls may connect between the plurality of adjacent winding turns of the superconducting wire. The conductive material may electrically conduct between the plurality of adjacent winding turns of the superconducting wire when a hot spot is generated by a local defect of the superconducting wire.

A non-insulated superconducting coil according to an example of the present invention includes: a bobbin; A superconducting wire wound on the bobbin by a plurality of winding turns; And a plurality of conductive particles disposed in the polymer layer and having a resistance higher than a resistance of the superconducting wire, and a plurality of conductive particles disposed in the polymer layer, The conductive impregnated layer comprising conductive balls having a diameter greater than the diameter of the particles. Here, each of the conductive balls may connect between the plurality of adjacent winding turns of the superconducting wire.

An apparatus for manufacturing a non-insulated superconducting coil impregnated with a conductive material of the present invention includes: a winding unit for winding a superconducting wire; A winding part for winding the superconducting wire on the bobbin; And an impregnation portion disposed between the winding portion and the winding portion and forming a conductive impregnated layer on the superconducting wire. Here, the conductive impregnated layer may include a plurality of conductive particles having a resistance higher than that of the superconducting wire. Wherein the impregnation unit comprises: a conductive material injection unit for forming the polymer particles on the superconducting wire, the conductive particles being mixed with the conductive particles; And a conductive ball application portion disposed adjacent to the conductive material injection portion and applying conductive balls to the polymer layer on the superconducting wire.

The non-insulated superconducting coil impregnated with a conductive material according to the inventive concept comprises a conductive material between a plurality of adjacent winding turns of the superconducting wire wound on the bobbin. The conductive material can protect the superconducting coil by bypassing the current between a plurality of adjacent turns turns of the superconducting coils during hot spots caused by the coils and improve the mechanical stability of the non-insulated superconducting coils due to impregnation between the turn turns .

1 is a cross-sectional view illustrating a non-insulated superconducting coil impregnated with a conductive material according to the concept of the present invention.
2 is a cross-sectional view showing an enlarged part A of FIG.
FIG. 3 is a graph showing the source current provided to the non-insulated superconducting coil of FIG. 1; FIG.
4 is a graph showing the abnormal peak voltage in a typical epoxy impregnated layer according to the source current of FIG.
5 is a graph showing a steady-state voltage of the superconducting wire of FIG. 1 according to the source current of FIG. 3. FIG.
6 is a cross-sectional view showing an example of the conductive impregnated layer in part A of Fig.
7 is a cross-sectional view showing the conductive balls and the superconducting wire of FIG.
FIGS. 8 and 9 are views showing the relationship between the radius of the conductive balls and the radius of the superconducting wire of FIG.
10 is a cross-sectional view showing an example of a conductive impregnated layer in part A of FIG.
11 is a cross-sectional view showing the superconducting wire and the conductive blocks of FIG.
12 is a perspective view showing the conductive blocks of Figs. 1 and 11. Fig.
13 is a cross-sectional view showing the superconducting wire and the conductive blocks of FIG.
FIG. 14 is a perspective view showing the conductive block of FIG. 13; FIG.
Fig. 15 shows an example of an apparatus for manufacturing the non-insulated superconducting coil of Fig.
FIG. 16 shows an example of an apparatus for manufacturing an insulated superconducting coil of FIG. 6.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the technical idea of the present invention. The same elements will be referred to using the same reference numerals. Similar components will be referred to using similar reference numerals. The structure of the non-insulated superconducting coil impregnated with the conductive material according to the present invention will be described below.

1 shows a non-isolated superconducting coil 10 impregnated with a conductive material according to the concept of the present invention. Fig. 2 is an enlarged view of a portion A in Fig.

Referring to FIGS. 1 and 2, the non-insulated superconducting coil 10 according to the concept of the present invention may include a bobbin 20, a superconducting wire 30, and a conductive impregnated layer 40.

The bobbin 20 may be disposed at the center of the non-insulated superconducting coil 10. The superconducting wire 30 and the conductive impregnated layer 40 may be fixed to the outer periphery of the bobbin 20. For example, the bobbin 20 may include a cylindrical tube. The inside of the bobbin 20 can be opened. Alternatively, the bobbin 20 may include a circular column. The interior of the bobbin 20 may be filled with a dielectric or metal.

The superconducting wire 30 is wound around the outer peripheral surface of the bobbin 20 by a plurality of winding turns. For example, the superconducting wire 30 has a first winding turn W 1 , a second winding turn W 2 , a third turn Turn W 3 , and a second winding turn W 2 along the outer peripheral surface of the bobbin 20. The (N-1) th turn (W N -1 ), and the N th turn (W N ). The superconducting wire 30 can conduct current I without a resistance loss at a critical current density of 1 MA / cm 2 or more. The superconducting wire 30 may include a low-temperature superconductor having superconductivity at a temperature of less than about 30K and a high-temperature superconductor having superconductivity at a temperature not lower than 30K. The low temperature superconductor may comprise a metal superconductor. High temperature superconductors may include oxide superconductors of YBCO, GdBCO.

The conductive impregnated layer 40 may be disposed between a plurality of adjacent winding turns of the superconducting wire 30. For example, the conductive impregnated layer 40 may be disposed between the first and second winding turns W 1 and W 2 . The conductive impregnated layer 40 may be disposed between the second and third winding turns W 2 , W 3 . The conductive impregnated layer 40 may be disposed between the N-1 winding turns W N-1 and the N winding turns W N. For example, the conductive impregnated layer 40 may comprise a conductive epoxy. According to one example, the conductive impregnated layer 40 may comprise a polymer layer 42 and conductive particles 44. The polymer layer 42 may comprise an epoxy or a resin. The conductive particles 44 may comprise metal particles having a diameter of about 10 A to about 10 mu m. The conductive particles 44 are made of gold (Au0 is at least one of Ag, Pt, Ni, Cu, W, Ca, Al, The conductive particles of nickel (Ni) and copper (Cu), which are highly reductively, may be coated with at least one metal component of gold (Au), silver (Ag), and platinum (Pt) The conductive impregnated layer 40 may comprise a carbon material of carbon nanotubes, fullerene, graphene, or graphite. Alternatively, the conductive impregnated layer 40 may comprise a carbon material, For example, the conductive impregnated layer 40 may comprise gallium, indium, or mercury.

On the other hand, the superconducting wire 30 can flow the current I without resistance at a temperature of about 90K or less. The conductive impregnated layer 40 can function as an insulator. When the resistance of the superconducting wire 30 increases, the conductive impregnated layer 40 can flow a current I between a plurality of adjacent winding turns.

If the hot spot 12 is generated due to a local defect in the superconducting wire 30, the superconducting wire 30 in the hot spot 12 can be spontaneously heated by the joule heat. The resistance of the superconducting wire 30 can be increased. The conductive impregnated layer 40 may be electrically conductive between a plurality of adjacent winding turns. For example, if a hot spot 12 is generated in the superconducting wire 30 of the second winding turn W 2 , the current I flows through the conductive infiltration layer 40 to the first winding turn W 1 , Can be applied between the second winding turn (W 2 ) and / or between the second winding turn (W 2 ) and the third winding turn (W 3 ). The current I may be bypassed through the conductive impregnated layer 40 between a plurality of adjacent winding turns. Thus, the conductive impregnated layer 40 can transfer heat in the hot spots 12 between a plurality of adjacent turns. Therefore, the conductive impregnated layer 40 is formed of a conductive material. Permanent damage of the superconducting coil 10 can be prevented.

FIG. 3 shows the source current provided to the non-insulated superconducting coil 10 of FIG. FIG. 4 shows the abnormal peak voltage in a typical epoxy impregnated layer according to the source current in FIG. Fig. 5 shows the steady-state voltage of the superconducting wire 30 of Fig. 1 according to the source current of Fig.

Referring to FIGS. 3 and 4, a superconducting coil of a typical epoxy impregnated layer (not shown) can output a peak voltage as the source current increases. For example, when a current of about 280 A (amperes) or about 300 A is applied to a superconducting wire, the superconducting coil of the epoxy-impregnated layer can output an abnormal peak voltage of about 100 mV or 175 mV at about 30 mV. The output of the abnormal peak voltage may mean permanent damage to the superconducting coil by the hotspot 12.

3 and 5, the superconducting coil 10 of the conductive impregnation layer 40 according to the embodiment of the present invention may flow in proportion to the source current and the voltage. According to one example, as the current increases, the voltage may also increase proportionally. An abnormal peak voltage may not be detected. For example, if the current increases from 20A to 280A, the voltage may increase evenly between 0V and 150mV. This is because when the hot spot 12 occurs, the conductive impregnated layer 40 bypasses the current between the winding turns.

Fig. 6 shows an example of the conductive impregnated layer 40 in part A of Fig.

Referring to FIG. 6, the conductive impregnated layer 40 may include a polymer layer 42, conductive particles 44, and conductive balls 46. The bobbin 20, the superconducting wire 30, the polymer layer 42, and the conductive particles 44 are the same as those in Fig. The conductive balls 46 may have a lower resistance than the resistance of the conductive particles 44. [ The conductive balls 46 may have a higher resistance than the resistance of the superconducting wire 30. The conductive balls 46 may be disposed in the polymer layer 42. The conductive balls 46 may be disposed between the conductive particles 44. The conductive balls 46 may be larger than the diameter of the conductive particles 44. The conductive balls 46 may have a diameter of 100 [mu] m to 1 mm. For example, the diameter of the conductive balls 46 may correspond to the distance between the plurality of winding turns of the superconducting wire 30. Alternatively, the diameter of the conductive balls 46 may be less than the distance between the plurality of winding turns.

The conductive balls 46 may connect between the first winding turn W 1 and the second winding turn W 2 of the superconducting wire 30. Conductive balls 46 may be connected between the second coil turn (W 2) and the third coil turn (W 3). When the hot spot 12 is generated in the superconducting wire 30 of the second winding turn W 2 , the current I flows through the conductive balls 46 through the first winding turn W 1 and the second turn turn W 2 and / or between the second winding turn W 2 and the third winding turn W 3 . The conductive particles 44 can protect the superconducting coils 10 from being damaged.

Fig. 7 shows a cross section of the conductive balls 46 and the superconducting wire 30 of Fig.

Referring to FIGS. 1 and 7, the superconducting wire 30 may have a circular cross-section along the longitudinal direction of the bobbin 20. For example, the superconducting wire 30 may include a low-temperature superconductor.

The polymer layer 42 of the conductive impregnated layer 40, the conductive particles 44, and the conductive balls 46 may be disposed between the first winding turns W 1 . The superconducting wire 30 of the first winding turns W 1 may be disposed on the bobbin 20. The conductive balls 46 may be connected between the first winding turns W 1 . The polymer layer, the conductive particles 44, and the conductive balls 46 may be disposed between the first winding turns W 1 and the second winding turns W 2 . The conductive balls 46 may be connected between the first winding turns W 1 and the second winding turns W 2 . The polymer layer 42, the conductive particles 44, and the conductive balls 46 may be disposed between the second winding turns W 2 . Conductive balls 46 may be connected between the second winding turns W 2 .

8 and 9 show the relationship between the radius a of the superconducting wire 30 and the radius b of the conductive balls 46 of Fig.

Referring to FIG. 8, the conductive balls 46 may be disposed at the center of an equilateral triangle having one side of the diameter 2a of the superconducting wire 30. The radius b of the conductive balls 46 is equal to the radius a of the superconducting wire 30

Figure 112016002882922-pat00001
Figure 112016002882922-pat00002
In the case of doubling, the first winding turns W 1 and the second winding turns W 2 may be in contact with each other.

9, the radius b of the conductive balls 46 is smaller than the radius a of the superconducting wire 30

Figure 112016002882922-pat00003
Figure 112016002882922-pat00004
It can be bigger than double. The first winding turns W 1 of the superconducting wire 30 can be separated from each other. The first winding turns W 1 and the second winding turns W 2 can be separated.

Fig. 10 shows an example of the conductive impregnated layer 40 in part A of Fig.

Referring to FIG. 10, the conductive impregnated layer 40 may include a polymer layer 42, conductive particles 44, and conductive blocks 48. The bobbin 20, the superconducting wire 30, the polymer layer 42, and the conductive particles 44 are the same as those in Fig.

The conductive blocks 48 may have a lower resistance than the resistance of the conductive particles 44 and may have a higher resistance than the resistance of the superconducting wire 30. [ The conductive blocks 48 may be disposed in the polymer layer 42. The conductive blocks 48 may be disposed between the conductive particles 44. The conductive blocks 48 may have a size larger than the size of the conductive particles 44. [ The height of the conductive blocks 48 may be equal to the distance between a plurality of adjacent winding turns of the superconducting wire 30. For example, the height of the conductive blocks 48 may be equal to the distance between the first and second winding turns W 1 , W 2 . The conductive blocks 48 may have a height of about 100 [mu] m or more.

The conductive blocks 48 may connect between the first winding turn W 1 and the second winding turn W 2 . Conductive blocks 48 may connect between the second winding turn W 2 and the third winding turn W 3 . When the hot spot 12 is generated in the superconducting wire 30 of the second winding turn W 2 , the current I flows through the conductive blocks 48 to the first and second turn turns W 1 and W 2, (W 2 ) and / or between the second winding turn (W 2 ) and the third winding turn (W 3 ). The conductive blocks 48 can prevent the superconducting coil 10 from being damaged.

Fig. 11 shows the superconducting wire 30 and the conductive blocks 48 of Fig. Figure 12 shows the conductive block 48 of Figures 10 and 11.

11 and 12, the superconducting wire 30 may have a rectangular cross-section along the longitudinal direction of the bobbin 20. For example, the superconducting wire 30 may comprise a high temperature superconductor. The superconducting wire 30 can have a superconducting property at a low temperature of about 90K or lower which is higher than a cryogenic temperature. According to one example, the conductive blocks 48 may have a cube shape. Alternatively, the conductive blocks 48 may have a rectangular parallelepiped shape. The bobbin 20, the polymer layer 42, and the conductive particles 44 are the same as those in Fig.

13 shows the superconducting wire 30 and the conductive blocks 48 of Fig. Fig. 14 shows the conductive block 48 of Fig.

13 and 14, the conductive blocks 48a may have a cylinder shape. The conductive blocks 48a may have a length equal to the width of the superconducting wire 30. The bobbin 20, the polymer layer 42, and the conductive particles 44 are the same as those in Fig.

Fig. 15 shows an example of an apparatus 100 for manufacturing the non-insulated superconducting coil 10 of Fig.

1, 2, and 15, an apparatus 100 for manufacturing a non-insulated superconducting coil includes a winding unit 110, a winding unit 120, a tension measuring unit 130, a wire rod guide unit 140, (150), and a heating unit (160). The unwinding unit 110 can release the superconducting wire 30. The winding portion 120 may coiling the superconducting wire 30. Each of the unwinding portion 110 and the winding portion 120 may include a roller. The tension measuring unit 130 can measure the tension of the superconducting wire 30 between the winding unit 110 and the winding unit 120. [ The wire rod guide part 140 may be disposed between the tension measuring part 130 and the winding part 120. For example, the wire rod guide portion 140 may include a pulley. The impregnating portion 150 may be disposed between the wire rod guide portion 140 and the winding portion 120. The impregnation unit 150 may form a conductive impregnated layer 40 on the superconducting wire 30. The heating section 160 may heat the source 32 of the conductive impregnated layer 40. For example, the heating portion 160 may heat the polymer of the conductive impregnated layer 40. The polymer of the conductive impregnated layer 40 can be heated to about 100 캜 or less. Alternatively, the heating portion 160 can heat the low temperature metal of the conductive impregnated layer 40 with the conductive impregnated layer 40. The low temperature metal of the conductive impregnated layer 40 may be heated to about 100 캜 or less. The superconducting wire 30 can be thermally stable at about 100 캜 or lower.

FIG. 16 shows an example of an apparatus 100 for manufacturing the non-insulated superconducting coil 10 of FIG.

Referring to FIGS. 1, 6, 9 and 16, an apparatus 100 for manufacturing a non-insulated superconducting coil includes an impregnation unit 150 having a conductive material injection unit 152 and a conductive ball application unit 154 . The winding unit 110, the winding unit 120, the tension measuring unit 130, the wire rod guide units 140, and the heating unit 160 are the same as those in FIG. The conductive material injecting part 152 may be disposed between the wire rod guide parts 140 and the winding part 120. The conductive material injecting part 152 may form the polymer layer 42 and the conductive particles 44 on the superconducting wire 30. The conductive ball application portion 154 may be disposed on the winding portion 120. [ The conductive ball application portion 154 can apply the conductive balls 146 in the polymer layer 42 on the superconducting wire 30. Alternatively, the conductive ball application unit 154 may be disposed between the conductive material injection unit 152 and the winding unit 120.

The embodiments have been disclosed in the drawings and specification as described above. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (20)

Bobbin;
A superconducting wire wound on the bobbin by a plurality of adjacent winding turns; And
And a conductive impregnated layer disposed between the plurality of adjacent winding turns of the superconducting wire,
The conductive impregnated layer comprising:
Polymer layer;
Conductive particles mixed in the polymer layer; And
Conductive balls disposed in the polymer layer and having a diameter larger than the diameter of the conductive particles,
Each of the conductive balls connecting between the plurality of adjacent winding turns of the superconducting wire,
Wherein the conductive impregnated layer has a resistance higher than the resistance of the superconducting tape and when the hot spot is generated by local defects of the superconducting tape, Superconducting coil. The method according to claim 1,
Wherein the conductive impregnated layer comprises a conductive epoxy. delete The method according to claim 1,
Wherein the conductive particles comprise at least one of gold, silver, platinum, silver, nickel, copper, tungsten, calcium, aluminum, and chromium. The method according to claim 1,
Wherein the conductive particles comprise carbon nanotubes, perlene, graphene, or graphite. delete The method according to claim 1,
When the superconducting wire has a circular cross-section, the conductive balls have a cross-sectional area smaller than the radius of the circular cross-
Figure 112016060441635-pat00005
Figure 112016060441635-pat00006
Non-isolated superconducting coils with larger radii than times. The method according to claim 1,
Wherein the conductive impregnated layer further comprises conductive blocks disposed in the polymer layer and having a size larger than the size of the conductive particles,
And each of the conductive blocks connects between a plurality of adjacent winding turns of the superconducting tape. 9. The method of claim 8,
Wherein when the superconducting wire has a quadrangular cross section, the conductive blocks have an incoherent shape. 9. The method of claim 8,
Wherein when the superconducting wire has a rectangular cross section, the conductive blocks include a cylinder having a length equal to the width of the superconducting wire. The method according to claim 1,
Wherein the conductive impregnated layer comprises gallium, indium, or mercury. Bobbin;
A superconducting wire wound on the bobbin by a plurality of winding turns; And
A plurality of conductive particles disposed in the polymer layer and having a resistance higher than a resistance of the superconducting wire; and a plurality of conductive particles disposed in the polymer layer, the conductive particles being disposed between the plurality of winding turns of the superconducting wire, Said conductive impregnated layer comprising conductive balls having a diameter greater than the diameter of said conductive impregnated layer,
Each of said conductive balls connecting between said plurality of adjacent winding turns of said superconducting wire. delete 13. The method of claim 12,
When the superconducting wire has a circular cross-section, the conductive balls have a cross-sectional area smaller than the radius of the circular cross-
Figure 112016060441635-pat00007
Figure 112016060441635-pat00008
Non-isolated superconducting coils with larger radii than times. 13. The method of claim 12,
Wherein the conductive layer comprises conductive blocks disposed between the conductive particles and having a larger size than the conductive particles,
And each of the conductive blocks connects between the plurality of adjacent winding turns of the superconducting tape. 16. The method of claim 15,
Wherein when the superconducting wire has a rectangular cross section, the conductive blocks have a cube shape having a height equal to a distance between the adjacent winding turns. 16. The method of claim 15,
Wherein when the superconducting wire has a rectangular cross section, the conductive blocks have a cylinder shape having a length equal to the width of the superconducting wire. An unwinding part for unwinding the superconducting wire;
A winding part for winding the superconducting wire on the bobbin; And
And an impregnating portion disposed between the winding portion and the winding portion and forming a conductive impregnated layer on the superconducting wire,
Wherein the conductive impregnated layer comprises a plurality of conductive particles having a resistance higher than that of the superconducting wire,
Wherein the impregnating portion comprises:
A conductive material injecting unit for forming the polymer particles mixed with the conductive particles on the superconducting wire; And
And a conductive ball applying portion disposed adjacent to the conductive material injecting portion and applying conductive balls to the polymer layer on the superconducting wire. 19. The method of claim 18,
And a heating unit for heating a source of the conductive impregnated layer provided in the conductive material injecting unit. delete
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