JP5181091B2 - Superconducting motive - Google Patents

Description

  The present invention relates to a superconducting motive having a plurality of rotating shafts.

  An ordinary electric motor includes a rotor in which a field coil is disposed, a stator in which an armature coil is disposed so as to face the field coil, and a rotating shaft fixedly connected to the rotor. It has become. In the case of such an electric motor, power is supplied to the rotating field coil by a slip ring or the like connected to one end of the rotating shaft.

When obtaining a large rotational output with such an electric motor, it is necessary to flow a large amount of current through the coil, resulting in an increase in the size of the entire electric motor including the coil.
Therefore, in order to reduce the size of the electric motor, a superconducting motor having a coil made of a superconducting material has been developed.

Various proposals have been made to reduce the size of a contra-rotating propeller drive device by using such a superconducting motor (see, for example, Patent Documents 1 and 2). In the superconducting motive used as such a driving machine, the coil arranged in the rotor is a normal conducting coil, and only the coil arranged in the stator is a superconducting coil.
JP 63-217968 A Japanese Utility Model Publication No. 5-29273

  However, in the case of the conventional superconducting motive, the rotor is provided with a normal conducting coil. Therefore, in order to increase the output of each rotating shaft, it is necessary to pass a large amount of current through the coil. For this reason, the structure for supplying power to the coil with rotational motion becomes complicated and large, and the entire superconducting motor is enlarged. Therefore, as in Patent Documents 1 and 2, for example, even when used for a counter-rotating drive used for a ship or the like, the drive still increases in size and is used for a small ship or a high-speed boat. There is a problem that can not be. Furthermore, since the current is inverted by collecting current, the current collecting must be increased in order to further increase the number of axes, which makes the configuration complicated and unsuitable.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a superconducting motive that can be downsized even if it has a plurality of output shafts.

  In order to achieve the above object, in the present invention, as a first solution for a superconducting motive, a first field side stator provided with a first field body forming N and S poles, The rotation axis is fixed, and the first N pole inductor arranged to face the N pole formed by the first field body, and the S pole formed by the first field body. A first rotor having a first S pole inductor arranged, and a first armature side on which a first armature coil is arranged facing the first N pole inductor and the first S pole inductor A stator, a second field side stator on which a second field body forming an N pole and an S pole is disposed, and a second rotating shaft is fixed and faces the N pole formed by the second field body. A second N-pole inductor arranged to be opposite to the S-pole formed by the second field body. A second rotor having an S-pole inductor, and a second armature-side stator having a second armature coil disposed opposite the second N-pole inductor and the second S-pole inductor. The second rotating shaft is arranged on the same axis as the first rotating shaft and rotatably with respect to the first rotating shaft.

  This means rotates the first rotating shaft via the first rotor by exciting the first field body of the first field side stator and the first armature coil of the first armature side stator. Can be made. Similarly, the second rotating shaft is rotated via the second rotor by exciting the second field body of the second field side stator and the second armature coil of the second armature side stator. Can provide rotational force. At this time, the second rotating shaft can be driven to rotate independently of the first rotating shaft. Therefore, it is possible to output a separate rotational force from each rotating shaft. In addition, since each rotor is not provided with a member that requires power supply, only the power supply and the stator need be cooled only for the stator, and the electric system and the cooling system can be simplified. .

  As a second means for solving the superconducting motive, in the first means, the first field body, the second field body, the first armature coil, and the second armature coil are each made of a superconducting material. A means characterized by being formed is adopted.

  In this means, since each field body and each armature coil are formed of a superconducting material, even if the size of each field body and each armature coil is made smaller than before, the same amount of current can flow, and superconductivity The electric motor can be further reduced in size.

  As a third means for solving the superconducting motive, in the first or second means, a first AC power source for supplying an AC current to the first armature coil arranged in the first armature side stator; An AC current that is fed by the first AC power source and the second AC power source, and a second AC power source that feeds an AC current to the second armature coil disposed on the second armature side stator. Adopting means characterized in that are mutually inverted.

  This means can reverse the directions of the rotating magnetic fields generated around the axis of the first armature side stator and the second armature side stator. Accordingly, the first rotor and the second rotor can be reversed with each other, and rotational forces in different directions can be output from the first rotation shaft and the second rotation shaft.

  As a fourth means for solving the superconducting motive, in the first or second means, a first DC power supply for supplying a DC current to the first field body arranged in the first field side stator; A second DC power source for supplying a DC current to the second field body arranged on the second field side stator, and a DC current supplied by the first DC power source and the second DC power source. The means is characterized in that the directions are directed in opposite directions.

  This means reverses the direction of the magnetic field generated in the first field body disposed in the first field side stator and the magnetic field generated in the second field body disposed in the second field side stator. be able to. Accordingly, the first rotor and the second rotor can be reversed with each other, and rotational forces in different directions can be output from the first rotation shaft and the second rotation shaft.

As a fifth solving means related to the superconducting motive, in any one of the first to fourth means, the first rotating shaft is formed in a cylindrical shape and the second rotating shaft is inserted. Adopt the feature means.
By this means, one end of the second rotating shaft protrudes from one end of the first rotating shaft, so that it is possible to output a plurality of rotational forces on the same axis and from positions close to each other.

As a sixth means for solving the superconducting motive, in any one of the first to fifth means, the first field side stator, the first rotor, and the first armature side stator, The first field-side stator, the second rotor, and the second armature-side stator are provided with a single housing that collectively accommodates the second field-side stator, the second rotor, and the second armature-side stator.
This means includes a first field side stator, a first rotor, and a first armature side stator, and a second field side stator, a second rotor, and a second armature side stator. By storing it in one housing, the length in the direction of the rotation axis can be shortened to further reduce the size.

  According to the present invention, a plurality of output shafts can be driven independently. In addition, the output can be reduced even with the same output as the conventional one.

A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the superconducting motor 1 according to the first embodiment of the present invention includes an axial gap type first electric motor 1A and a first electric motor 1A that are substantially the same and connected along the same axis. And two electric motors 1B.

  The first electric motor 1A is arranged symmetrically so as to face the first rotating shaft 2 formed in a cylindrical shape, and the first field coil is formed so that the N pole and the S pole are formed concentrically. (First field body) A first field coil comprising a pair of first field side stators 5A and 5B, which is provided with 3A and supports the first rotating shaft 2 so as to be rotatable and piercable. The first N pole inductor 6A magnetized opposite to the N pole formed by 3A, and the first S magnetized opposite to the S pole made of a magnetic material and formed by the first field coil 3A. A first rotating shaft 2 having a pole inductor 7A is fixed, a pair of first rotors 8A and 8B disposed between a pair of first field side stators 5A and 5B, and a first N A first armature coil 10A is arranged to face the pole inductor 6A and the first S pole inductor 7A so that the first rotating shaft 2 can rotate freely. And, through rotatably supported, and a first armature side stator 11 disposed sandwiched pair of first rotor 8A, the 8B, a first housing 12 for housing them.

  The second electric motor 1B is coaxial with the first rotary shaft 2 and has a second rotary shaft 13 disposed in the first rotary shaft 2 so as to be rotatable with respect to the first rotary shaft 2. The second field coil (second field body) 3B is arranged so as to be symmetrically arranged so as to face each other and the N pole and the S pole are formed on concentric circles, and the second rotating shaft 13 is freely rotatable. And a pair of second field side stators 14A and 14B supported so as to be penetrable and a first N pole magnetized opposite to the N pole formed of a magnetic material and formed by the second field coil 3B. The second rotating shaft 13 is fixed with an inductor 6B and a second south pole inductor 7B made of a magnetic material and magnetized opposite to the south pole formed by the second field coil 3B. A pair of second rotors 15A and 15B disposed between the second field side stators 14A and 14B, A second armature coil 10B is arranged opposite to the pole inductor 6B and the second S pole inductor 7B, and supports the second rotary shaft 13 so as to be rotatable and penetrating, thereby making a pair of second rotations. A second armature-side stator 16 disposed between the sub-elements 15A and 15B and a second housing 17 for storing them are provided.

Since the 1st electric motor 1A and the 2nd electric motor 1B are set as the same structure, below, it demonstrates centering on the 1st electric motor 1A shown in FIG.
The pair of first field side stators 5A, 5B is made of a magnetic material such as a permender, silicon steel plate, iron, permalloy, and the like. The heat insulating refrigerant container 20 is provided. The yoke 18 is provided with a through hole 18a having a diameter larger than that of the first rotating shaft 2. A bearing 21 for rotating and supporting the first rotary shaft 2 is disposed in the through hole 18a.

  The heat insulating refrigerant container 20 is arranged along a circumferential groove 18 b formed in a concave shape in the yoke 18 with the connection position with the first rotary shaft 2 as the center. The first field coil 3 </ b> A is made of a superconducting material such as bismuth or yttrium, and is wound along the circumferential groove 18 b and stored in the heat insulating refrigerant container 20. For this reason, when the first field coil 3A is excited, magnetic poles are generated in the radial direction.

  The pair of first rotors 8A and 8B is formed in a disk shape and is made of a nonmagnetic material such as FRP or stainless steel, and includes a rotor body 22 that fixes and supports the first rotating shaft 2 at the center. The first N-pole inductor 6 </ b> A is formed so as to penetrate in the plate width direction of the rotor body 22 at a position that is point-symmetric with respect to the center of the rotor body 22. At this time, the one end face 6a of the first N pole inductor 6A is opposed to the N pole generation position of the first field coil 3A, and the other end face 6b is opposed to the first armature coil 10A. It is arranged in.

  The first south pole inductor 7A has a point symmetric with respect to the center of the rotor body 22, and the rotor body 22 has a phase difference of 90 degrees with respect to the first north pole inductor 6A. It is formed to penetrate in the plate width direction. At this time, the one end surface 7a of the first S pole inductor 7A is opposed to the S pole generation position of the first field coil 3A, and the other end surface 7b is opposed to the first armature coil 10A. It is arranged in. The first N-pole inductor 6A and the first S-pole inductor 7A are made of a magnetic material such as a permender, a silicon steel plate, iron, and permalloy.

  The first armature side stator 11 includes a stator body 23 made of a nonmagnetic material such as FRP or stainless steel. A through hole 23 a through which the first rotation shaft 2 passes is arranged at the center of the stator body 23. A heat insulating refrigerant container 20 is embedded on the same circumference with respect to the center position around the through hole 23a in the radial direction. A first armature coil 10 </ b> A made of a superconducting material such as bismuth or yttrium is disposed in the heat insulating refrigerant container 20. In the hollow portion of the first armature coil 10A, a columnar magnetic body 25 made of a highly permeable material such as permender, silicon steel plate, iron, permalloy or the like is disposed in order to obtain a large field magnetic flux density.

A DC power supply 27 is connected to the first field coil 3 </ b> A and the second field coil 3 </ b> B via a DC electric wiring 26. The first armature coil 10 </ b> A disposed in the first armature side stator 11 is connected to the first AC power source 30 </ b> A via the AC electrical wiring 28 </ b> A and disposed in the second armature side stator 16. A second AC power supply 30B is connected to the second armature coil 10B via an AC electrical wiring 28B.
Further, a cooler 32 using liquid nitrogen as a refrigerant is connected to the heat insulating refrigerant container 20 via a cooling pipe 31.

Next, the operation and effect of the superconducting motive 1 according to this embodiment will be described.
First, the cooler 32 is driven, and the first field coil 3A, the second field coil 3B, the first armature coil 10A, and the second armature coil 10B are each cooled with liquid nitrogen to be in a superconducting state. To do.

  Next, a direct current is supplied from the direct current power source 27 to the field coils 3A and 3B. At this time, an N pole is formed on the radially outer side of each field coil, and an S pole is formed on the radially inner side. At this time, depending on the direction of the direct current between the first field side stator 5A and the second field side stator 14B and the first field side stator 5B and the second field side stator 14A. The magnetic poles have different orientations. As a result, the N pole is led to the other end face 6b of each N pole inductor 6A, 6B facing the first armature side stator 11 and the second armature side stator 16 respectively. On the other hand, the S pole is led to the other end face 7b of each S pole inductor 7A, 7B facing the first armature side stator 11 and the second armature side stator 16 respectively.

  In this state, three-phase alternating current is supplied from the first alternating current power source 30 </ b> A to the first armature coil 10 </ b> A of the first armature side stator 11. At this time, a rotating magnetic field that rotates around the first rotating shaft 2 is generated in the first armature coil 10A due to the phase difference between the three phases. This rotating magnetic field generates a rotational force around the rotation axis in the same direction between the pair of first rotors 8A and 8B with respect to the first N-pole inductor 6A and the first S-pole inductor 7A. The shaft 2 rotates. On the other hand, the three-phase alternating current inverted from the three-phase alternating current by the first alternating-current power supply 30A is supplied from the second alternating-current power supply 30B to the second armature coil 10B of the second armature-side stator 16. At this time, a rotating magnetic field that rotates in the opposite direction to that of the first armature side stator 11 is generated by the phase difference between the three phases. This rotating magnetic field is the same between the pair of second rotors 15A and 15B with respect to the second N-pole inductor 6B and the second S-pole inductor 7B, and opposite to the pair of first rotors 8A and 8B. A rotational force around the rotational axis in the direction is generated, and the second rotary shaft 13 rotates in a direction different from that of the first rotary shaft 2.

According to this superconducting motive 1, current is passed through the first field coil 3 </ b> A of the pair of first field side stators 5 </ b> A and 5 </ b> B and the first armature coil 10 </ b> A of the first armature side stator 11. By exciting, the 1st rotating shaft 2 can be rotated via a pair of 1st rotor 8A, 8B.
Similarly, a current is passed through the second field coil 3B of the pair of second field side stators 14A and 14B and the second armature coil 10B of the second armature side stator 16 to excite them as described above. Similarly, the second rotary shaft 13 can be rotated via the pair of second rotors 15A and 15B. At this time, the second rotary shaft 13 can be driven to rotate independently of the first rotary shaft 2. Accordingly, it is possible to output independent rotational forces from the respective rotary shafts 2 and 13.

  In addition, since each field coil and each armature coil are formed of a superconducting material, the size of each field coil and each armature coil can be made smaller than before, and the superconducting motor 1 can be miniaturized. be able to. At this time, since the pair of first rotors 8A and 8B is not provided with a coil, it is not necessary to supply power to them or cool them. Therefore, the electrical system and the cooling system can be simplified.

Next, a second embodiment will be described with reference to FIG.
In addition, the same code | symbol is attached | subjected to the component similar to 1st Embodiment mentioned above, and description is abbreviate | omitted.
The difference between the second embodiment and the first embodiment is that the superconducting motor 35 according to this embodiment supplies a direct current to the first field coil 3A of the first motor 35A. 36A and a second DC power source 36B that supplies a DC current to the second field coil 3B of the second electric motor 35B, and the directions of the DC currents supplied by both are in different directions. is there.
The alternating current supplied to each armature coil 10A, 10B is supplied from an alternating current power source 37.

Hereinafter, the operation and effect of the superconducting motive 35 according to the present embodiment will be described.
First, similarly to the first embodiment, the field coils 3A and 3B and the armature coils 10A and 10B are cooled.
Subsequently, a direct current is supplied from the first DC power source 36A to the first field coils 3A of the pair of first field side stators 5A and 5B. Further, a direct current in the direction opposite to the direct current is supplied from the second direct current power supply 36B to the second field coils 3B of the pair of second field side stators 14A and 14B.

  At this time, each of the field coils 3A and 3B is divided into a radially outer side and a radially inner side to generate N and S poles. At this time, the first magnetic field side stator 5A and the second field side stator 14A, and the first field side stator 5B and the second field side stator 14B have different magnetic pole directions, respectively. Become. As a result, the S pole is led to the other end surface 7b of the S pole inductors 7A and 7B facing the first armature side stator 11 and the second armature side stator 16 respectively. On the other hand, the N pole is led out to the other end face 6b of the N pole inductors 6A and 6B facing the first armature side stator 11 and the second armature side stator 16 respectively.

  In this state, three-phase alternating current is supplied from the AC power source 37 to the first armature coil 10 </ b> A of the first armature side stator 11. At this time, a rotating magnetic field that rotates in the direction connecting the first armature coil 10A is generated by the phase difference between the three phases. This rotating magnetic field causes the first N-pole inductor 6A and the first S-pole inductor 7A to generate a rotational force around the rotation axis, and the first rotating shaft 2 rotates. On the other hand, a three-phase alternating current in the same direction as the first armature side stator 11 is supplied from the AC power source 37 to the second armature coil 10 </ b> B of the second armature side stator 16. At this time, a rotating magnetic field that rotates in the opposite direction to the first armature coil 10A of the first armature-side stator 11 is generated by the phase difference between the three phases. This rotating magnetic field causes the second N-pole inductor 6B and the second S-pole inductor 7B to generate a rotational force around the rotation axis, so that the pair of second rotors 15A and 15B becomes a pair of first rotors 8A and 8B. The second rotating shaft 13 rotates in the opposite direction.

  According to this superconducting motive 35, the same actions and effects as in the first embodiment can be achieved by reversing the directions of the direct currents instead of the alternating currents.

Next, a third embodiment will be described with reference to FIGS.
In addition, the same code | symbol is attached | subjected to the component similar to other embodiment mentioned above, and description is abbreviate | omitted.
The difference between the third embodiment and the first embodiment is that the superconducting motor 40 according to the present embodiment includes a pair of first field side stators 5A and 41, a pair of first rotors 8A and 8B, The first armature side stator 11, the pair of second field side stators 42 and 14B, the pair of second rotors 15A and 15B, and the second armature side stator 16 are stored together. One housing 43 is provided.

That is, when the first field side stator 41 and the second field side stator 42 are provided with one common yoke 45, the first electric motor 1A and the second electric motor 1B according to the first embodiment can be obtained. It is configured as a unit.
Here, the field coils 3A and 3B are arranged in the yoke 45 so as not to be affected by the mutual magnetic fields.

The superconducting motive 40 according to the present embodiment is driven by the same method as the superconducting motive 1 according to the first embodiment.
Therefore, according to the superconducting motive 40, the same actions and effects as those of the first embodiment can be achieved. In particular, since the first field side stator 41 and the second field side stator 42 are provided with a common yoke 45, the length in the direction of the rotation axis can be further reduced, and the size of the superconducting motive force can be reduced. Can be made smaller.

Next, a fourth embodiment will be described with reference to FIG.
In addition, the same code | symbol is attached | subjected to the component similar to other embodiment mentioned above, and description is abbreviate | omitted.
The difference between the fourth embodiment and the third embodiment is that the first rotating shaft 51 and the second rotating shaft 52 of the superconducting motor 50 according to the present embodiment have the same outer diameter. .

One end side 51a of the first rotating shaft 51 is rotatably supported by the bearing 21 on the first field side stator 5A and is arranged to project outward. One end side 52a of the second rotating shaft 52 is The bearing 21 is rotatably supported by the second field side stator 14B and is arranged to protrude outward. Both the other end 51 b of the first rotating shaft 51 and the other end 52 b of the second rotating shaft 52 are rotatably supported in the yoke 45 by the bearing 21.
According to this superconducting motive 50, it is possible to output rotational driving forces in opposite directions with respect to the same axis.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the coolers 32 for cooling the heat insulating refrigerant container 20 related to the superconducting motive are all common, but as the cooling means, the heat insulating cooling related to the pair of first field side stator and first armature side stator. The first cooling means for cooling the container and the second cooling means for cooling the heat insulating cooling container related to the pair of second field side stator and second armature side stator may be provided. .

In this case, even when one of the cooling means fails, the superconducting state can be maintained by the other cooling means, and the corresponding rotating shaft can be rotationally driven by the coolable field coil and armature coil.
Similarly, a power source related to the pair of first field side stator and the first armature side stator and a power source related to the pair of the second field side stator and the second armature side stator are further divided into two systems. You can divide it into In this case, either one of the electric systems can be used as a redundant system.

In the first embodiment, the superconducting motive is an axial gap type, but the same operation and effect can be achieved even with a radial gap type configuration.
For example, the first electric motor 60A of the superconducting motor 60 includes a first armature-side stator 61 formed in a cylindrical shape as shown in FIG. The first armature-side stator 61 includes a yoke 62 in which four protrusions 62A protruding radially inward are arranged at equal intervals in the circumferential direction of the inner peripheral surface, and the first armature coil is provided on the protrusion 62A. 10 A is wound and cooled in the heat insulating refrigerant container 20. The first field-side stator 63 is fitted to the inner peripheral surface of the first armature-side stator 61, and the first rotor 65 is connected to the first armature-side stator 61 and the first field-side stator. It is enclosed and arranged so that both of the child 63 may be opposed.

  In this case, as shown in FIG. 9, the first N-pole inductor 66A has a strip shape and a step shape, and is arranged so that one end 66a faces the N-pole generation position of the first field coil 3A. The other end 66b side is arranged to face the first armature coil 10A. Further, as shown in FIG. 10, the first S-pole inductor 67A is formed in a strip shape, and is arranged so that one end 67a faces the S-pole generation position of the first field coil 3A. The other end 67b is disposed so as to face the first armature coil 10A. Although not shown, the second motor has the same configuration.

  When driving the superconducting motor 60, the first armature coil 3A is fed with a direct current from the direct current power supply 27, and the first armature coil 10A is fed with a three-phase alternating current from the alternating current power supply 30A. A rotating magnetic field is generated around the axis of the first rotating shaft 2 </ b> A on the inner peripheral surface of the side stator 61. Accordingly, the first rotor 65 rotates as described above, and the first rotating shaft 2A rotates accordingly.

  Moreover, you may arrange | position a permanent magnet instead of the field coil which concerns on a pair of 1st field side stator and a pair of 2nd field side stator. In this case, since it is not necessary to cool the permanent magnet and conduct it, the superconducting motive can be further reduced in size.

1 is a perspective view showing a superconducting motive according to a first embodiment of the present invention. It is sectional drawing which shows the internal structure of the superconducting motive which concerns on the 1st Embodiment of this invention. It is a partial cross section perspective view which shows the principal part of the superconducting electromotive machine which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the internal structure of the superconducting motive which concerns on the 2nd Embodiment of this invention. It is a partial cross section perspective view which shows the superconducting electromotive machine which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows the internal structure of the superconducting motive which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows the internal structure of the superconducting motive which concerns on the 4th Embodiment of this invention. It is sectional drawing which shows the internal structure of the superconducting electromotive machine which concerns on other embodiment of this invention. It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG.

Explanation of symbols

1, 35, 40, 50, 60 Superconducting motives, 2, 51 First rotating shaft, 3A First field coil (first field body), 3B Second field coil (second field body), 5A, 5B, 41, 63 1st field side stator, 6A, 66A 1st N pole inductor, 6B 2nd N pole inductor, 7A, 67A 1st S pole inductor, 7B 2nd S pole inductor, 8A, 8B , 65 First rotor, 10A First armature coil, 10B Second armature coil, 11, 61 First armature side stator, 13, 52 Second rotating shaft, 14A, 14B, 42 Second field side Stator, 15A, 15B Second rotor, 16 Second armature side stator, 43 Housing

Claims (5)

A first field side stator on which a first field body forming an N pole and an S pole is disposed;
A first rotating shaft is fixed, and the first N pole inductor arranged to face the N pole formed by the first field body, and the S pole formed by the first field body. A first rotor having a first south pole inductor arranged as follows:
A first armature-side stator in which a first armature coil is arranged facing the first N-pole inductor and the first S-pole inductor;
A second field side stator in which a second field body forming an N pole and an S pole is disposed;
A second rotation axis is fixed, and the second N pole inductor arranged to face the N pole formed by the second field body, and the S pole formed by the second field body. A second rotor having a second south pole inductor arranged as follows:
A second armature-side stator in which a second armature coil is arranged facing the second N-pole inductor and the second S-pole inductor ;
A first AC power source for supplying an AC current to the first armature coil disposed on the first armature side stator;
A second AC power source for supplying an AC current to the second armature coil disposed on the second armature side stator ,
The second rotating shaft is arranged coaxially with the first rotating shaft and is rotatable with respect to the first rotating shaft, and the first AC power source and the second AC power source are supplied with power. Superconducting motives characterized in that alternating currents to be reversed are mutually inverted . A first field side stator on which a first field body forming an N pole and an S pole is disposed;
A first rotating shaft is fixed, and the first N pole inductor arranged to face the N pole formed by the first field body, and the S pole formed by the first field body. A first rotor having a first south pole inductor arranged as follows:
A first armature-side stator in which a first armature coil is arranged facing the first N-pole inductor and the first S-pole inductor;
A second field side stator in which a second field body forming an N pole and an S pole is disposed;
A second rotation axis is fixed, and the second N pole inductor arranged to face the N pole formed by the second field body, and the S pole formed by the second field body. A second rotor having a second south pole inductor arranged as follows:
A second armature-side stator in which a second armature coil is arranged facing the second N-pole inductor and the second S-pole inductor;
A first DC power source for supplying a DC current to the first field body disposed on the first field side stator;
A second DC power source for supplying a DC current to the second field body disposed on the second field side stator,
The second rotating shaft is arranged coaxially with the first rotating shaft and is rotatable with respect to the first rotating shaft, and the first DC power source and the second DC power source are A superconducting motive characterized in that directions of direct currents to be fed are opposite to each other . 3. The superconductivity according to claim 1 , wherein the first field body, the second field body, the first armature coil, and the second armature coil are each formed of a superconducting material. Electric motor. The superconducting motor according to any one of claims 1 to 3, wherein the first rotating shaft is formed in a cylindrical shape, and the second rotating shaft is inserted therethrough. The first field side stator, the first rotor, and the first armature side stator, the second field side stator, the second rotor, and the second armature side stator. The superconducting motive according to any one of claims 1 to 4, further comprising: a single housing that collectively stores

Images