JPS5980148A - Guide way for superconductively magnetic levitated vehicle - Google Patents

Abstract

PURPOSE:To facilitate a civil engineering and to enhance the accuracy of a guide way for a superconductively magnetic levitated vehicle by providing a groove of a rectangular section on a pair of vertical surfaces, and burying a propulsion guide coil in a small groove formed on the bottom of the groove. CONSTITUTION:A propulsion guide coil 3F and a levitation coil 4D are mounted on a U-shaped guide way 5B. Concrete is filled and solidified by using a framework exclusive for manufacturing the guide way in the guide way 5B. A groove 5C, to which the coil 3F is inserted, and a groove 5D for containing wirings at the rear of the groove 5C are continuously formed on the inner surface of the guide way, and a groove 5E for coupling a groove 5D for wirings of the coil 3F is further formed. An air straightening cover 17 is provided on the surface of the coil 3F.

Description

DETAILED DESCRIPTION OF THE INVENTION a) Description of the Technical Field The present invention relates to the structure of a ground-side propulsion guide coil for propelling and guiding a superconducting magnetically levitated vehicle.

b) Explanation of the prior art The superconducting magnetic levitation vehicle currently being developed is propelled by a ground-level linear motor, but it is clear that the economic efficiency of these related ground structures also influences the economic efficiency of the entire system. Therefore, the big question is whether to install above-ground structures on all four sides.

Generally speaking, the arrangement of the propulsion guide coils is as shown in Figure 1 in the case of a U-shaped track.
are the vehicle body, 2A and 2B are superconducting electromagnets, and 3A and 3B are propulsion guide coils that simultaneously propel the vehicle in a linear synchronous manner (2. The null flux connection allows the vehicle to move to the center of the track υ
If it deviates, it has an acting force that pushes the vehicle back toward the center (2). 4A and 4B are levitation coils wound several turns in a loop. When superconducting electromagnets 2A and 2B pass directly above, this levitation coil (= The eddy current generated by the applied magnetic flux changes generates a repulsive magnetic flux, and between the superconducting electromagnet and the superconducting electromagnet, a repulsive magnetic force capable of holding the vehicle levitated is obtained. 5 is a U-shaped (2,
The track is made of concrete and reinforced with steel bars to prevent current from flowing due to changes in magnetic flux.

Reference numeral 6 is a bogie frame in which the left and right superconducting electromagnets are assembled and buffered and supported via the load-bearing springs 9 of the vehicle body 1. When the superconducting magnets lose their levitation force or guiding force at low speed or stop, It also includes support tires 7 and tea tires 8 that support the vehicle body.

Details of the coil in the propulsion system: The I-shape is as shown in Figures 2 and 3. In the case of the propulsion guide coil 3c in Figure 2, I
A coil outlet of the OA is provided below, and this outlet connects the mold-insulated conductors of the 30 propulsion guide coils and the I
Connect the IA wire and see if it works during use 72:,! ,
The aim is to provide sufficient insulation against the high voltage and high current of 1.

In the case of FIG. 3, in the case of a 3D propulsion guide coil, an exit portion of C2 JOB is provided on the opposite side to the one facing the vehicle, and the exit portion is provided horizontally to the outside of the track (double line 11B is arrowed).

FIG. 4 shows the wiring of these 3A and 3B propulsion guide coils. One side of the U-shaped track (two coils in the propulsion system, 3AA, 3A) 3, 3
The propulsion guide coils 3BA, 3BB, 3BC-3BG are shown on the other side. These left and right propulsion guide coils keep the vehicle centered on the track (
2 Null 7 sinks connection wire 13A for guiding 13
Connect the left and right propulsion guide coils at the beginning and end of winding of the coils in the propulsion system with B~13N, and connect the ends to each connection wire.
A three-phase variable voltage variable frequency inverter (VVVF inverter) of 12A, 12B, and 12C supplied from the base propels the moving magnetic flux by flowing three-phase current to every three propulsion guide coils in a well-ordered manner. Guide coils (2 superelectric 4 electromagnets (2) and some NS & permanent magnets are used to enable linear synchronous propulsion operation. In this way, the left and right propulsion guides are connected between the coils in the propulsion system. Null flux connection edge 13A connecting between coils,
An infinite number of numbers 13B to 13N are required. At the same time, wiring from three-phase power sources 13A, 13B, and 13C with high day pressure currents was installed, and an extremely large amount of wiring was installed on the orbit.

Figure 5 shows a cross section of the improved track, and the propulsion guide coil 3E and levitation coil 4C are both embedded in the inner surface of the U-shaped track 5A.

In this way, the train wind generated by the magnetically levitated vehicle traveling at high speed can be prevented from emitting noise from the turbulence of the airflow between the propulsion system coil and the levitation coil. This prevents accidents in which part of the vehicle body gets caught in the ground coil when the vehicle moves up or down.

However, it is difficult to install a propulsion guide coil in the shape of this track (part 2, Figure 2 or Figure 3).

In the case of Fig. 2, the electric wires 11A that have gone downward (two downwards) must be double-wired as shown in Fig. There must be enough space to store and connect the electric wires that extend downward from the grooves, and grooves for the connection wires that will be placed under the levitation coils, arranged at a narrow pitch.In other words, the propulsion guide All problems related to the placement and installation of fills have been solved using civil engineering structures, and the resulting construction materials have many undesirable irregularities, and moreover, strict requirements are placed on the smoothness of the top surface.

In the case of a propulsion guide coil as shown in Figure 3, all electric wires 1
1B penetrates the wall of the U-shaped track and connects it on the back side, so it is relatively easy to obtain the space outside the wall, but in advance, make sure to install bright wires on the left and right sides of the propulsion guide coil. When pouring concrete, through-holes must be made (2), which is inconvenient (2-9, inconvenient) and requires a hole that exceeds the general depth of civil engineering work. Properly connecting the left and right power sources is also a task that requires very long electric wires.

As mentioned above, the propulsion guide coil as shown in Fig. 2 or 3 is
High-speed operation requires extremely precise civil engineering work, and matching the magnetic structure is also difficult.

C) To solve problems beyond the object of the invention, it is possible to provide a propulsion and guide coil structure that is easy to perform civil engineering work and has sufficient trajectory accuracy.

d) Structure of the invention The basic cross section of the track and propulsion guide coil according to the invention is shown in the sixth section.
Figure (-1) Figure 7 shows a perspective view of the front side of the propulsion guide coil, Figure 8 shows the back side, Figure 9 shows the lead wire structure that will be the connection structure in the field, and the connection between each propulsion coil. A side view is shown in Fig. 10, and an actual wiring diagram between each propulsion and guide coil is shown in Fig. 11.

First, the relationship between the υ orbital purchase and the propulsion guide coil will be explained using Figure 6. 5B's U-shaped track is equipped with 3F's inventive propulsion guide coil 3F and 4D's levitation coil.
Since the levitation coil mounting structure etc. in D are not subject to the present invention, the details will be omitted with only a description of the installation at this position (2).

5B's U-shaped straight track will be concrete poured and solidified using a form exclusively for track production. The inner surface of the orbit is 3F. Inference: lT!
The groove 5C for inserting the industrial coil and the groove 5D for storing the double wire behind it (two continuous grooves are formed, and furthermore (-1 for the propulsion industrial coil 3F) one place for left and right wiring every three. ipt
Connect 5D to form g 5E. In this case, you may decide to embed a thick conduit tube-shaped pipe in the concrete.

In this way, the inner surface of the two orbits has a convex shape.

It is extremely easy to form such continuous grooves. When pouring concrete for this track (=, fix the screw seats 16 on the formwork side with ports etc. at a specified pitch, and after pouring the concrete, remove the fixed bolts from the formwork, the screw seats 16 will be at an extremely accurate pitch. (2) can be fixed inside the track 5B. This fixes the propulsion guide coil.

The propulsion guide coil 3F is made by molding the periphery of the coil body 14 with insulating resin, and is housed inside the propulsion guide coil groove 5C.The width direction dimension is adjusted with the shim 18, and the bolt is inserted after adjusting the width direction with the shim 18. 15 is screwed into the screw seat 16 (2 is screwed into the track (2 is fixed. - is inside the wiring m5D on the rear side of the propulsion guide coil 3F (- is the UVW phase from the 3-phase power supply (2 phases are connected to the 12D, 12E, 12F) Connection wire 13P for connecting the null flux between the no'jo line and the left and right wiring
.

The surface of this propulsion guide coil is provided with a wind regulating cup (-17) to smooth the surface of the train so as not to cause turbulence in the train wind. do.

Next (-Using Figures 7 and 8, this propulsion guide coil 3F
To explain the basic structure of the propulsion guide coil 3, FIG.
F is a perspective view of the vehicle (from two opposing surfaces, and Figure 8 is a perspective view from the back side of the propulsion guide coil. The other lead wire protrudes from the center or bottom of the coil toward the center of the coil.On the other hand, the other lead wire has a groove structure as shown in the terminal plate 19 at the end of the coil. This groove structure 3J is located on the opposite side of the terminal plate 19 so that the wire placed on the back side of the coil can be inserted and fixed without any force. The opening is formed so that it protrudes from the back side of the propulsion guide coil 3F.The bolt hole for fixing this propulsion guide coil to the track is a 7-lung-shaped opening on the inside of the propulsion guide coil. Composed of riffs 3H, '3G + bifurcated.

Center the opening (
Finally, a cover 17 is provided to provide a smooth surface.

As shown in FIG. 9, details of the vicinity of the terminal plate 19 (explained using two terminal plates). Connection wire 13 connecting guide coil +1 with null flux
P is connected using bolt B and terminals 21 and 22. U
Inside the groove 3J (after the double wire 12D and the connecting wire 13P are installed, the terminal board 19, terminals 21, 22, hole) 23 and the electric wires (1) 12D, 13P are integrated into an insulating resin or Inject rubber and solidify. (2) Completely insulate the mold to prevent current leakage.

Next, Figure 10 is a diagram showing how the electric wires are arranged when the propulsion guide coils explained in Figures 7 and 8 are connected to each other. As shown in the figure, there are 1,900 terminal blocks for the 3FD coil that extend straight (
= connect. In this case, the null flux connection edge 13S connected to the terminal block 19D at the same time (two connections is 3FB).

Together with connecting wires 13R and 13P connected by 3FC, one place (two are combined and connected to the propulsion guide coil on the opposite side).

Like this (212FA, 12FB, 12DA,
12DB, 12EA.

12EB, even though many wires are arranged, they are very orderly and parallel (two wires can be arranged close together, making it extremely easy to handle the wiring, and three three-phase wires can be wired together). (Secondly, the influence of magnetic flux on the surroundings is kept to a minimum.

In addition, since the wiring for null flux connection between the left and right propulsion guide coils can be processed together, it is an extremely rational wiring connection method.

What is the relationship between this wiring method and the conventional wiring method in Figure 4? of'
A single magnetic wire connects the propulsion guide coils that are mutually null flux connected, whereas in the case of Fig. 11, the right side of the trajectory 0111. On the left side, three-phase electric wires are arranged, and the fourth
The same effect as shown in the figure is obtained. Simultaneously (2, for example 1 in Figure 4)
The 3B connection wire and the 13G connection wire handle the same function with two wires, but in the case of 13S, 13R, and 13P, one wire serves as the null flux circuit wire for two coils, resulting in a structural improvement (- Taking note of the difficulty in arranging the left and right connecting wires, it can be seen that the connections in Figures 4 and 11 are essentially the same.

e) Functions and Effects of the Invention The following functions and effects can be seen when the propulsion coil of the present invention is used, although the detailed description of the invention has already mentioned the functions (even if there are only two).

First, the groove for storing the propulsion guide coil in the track and the groove for storing the wiring become smooth continuous grooves that are extremely convenient for molding the track. For this reason, the screw seat 16 for installing and fixing the propulsion guide coil is set at the propulsion guide coil pitch (two pieces meet each other in the form frame).
As long as two devices are installed, a track shape suitable for civil engineering work can be achieved.

In this way, since the track has the same cross section in the longitudinal direction, the reinforcement structure that is placed inside the track for reinforcement is also extremely simple. Areas with large magnetic flux changes are removed as wiring grooves.

In this way, it is not a stupid structure that is preferable due to the Nijoki design (1), and it is a simple structure that can be used during civil engineering construction, so it is easy for concrete to flow during concrete pouring. It has the advantage of being easy to manufacture.

The positioning of the coil in the propulsion system is performed by adjusting the shim 18.

Since the shim 18 will be inserted under the lips 3H and 3G, insert your hand through the opening in the center of the propulsion guide coil and clean it.

Next (-1) The voltage-resistant insulation at the opening of each propulsion guide coil can be installed in a factory and is highly reliable.

Insulating protection for the terminal board 19, terminals 21, 22, electric wires 12, and connection wires 13 is done by inserting insulating resin or rubber into a U-shaped insulation groove (
- Pouring and solidifying.

Next (-1) To install these propulsion guide coils, as shown in Fig. 10, first fix the propulsion guide coil on the left side in the figure, for example 3FA, connect the terminal plate of 19A,
Prepare the connection wires of 131 (, 13S in the wiring groove (2) in advance, then fix the coil of 3FB and connect it to the terminal board 19B.
Then, fix the propulsion guide coil of 3FC and connect the terminal plate of 19C. Just insert the wire into 3J.

Also, each electric wire is very close to each other in the wiring groove, making U and V connections.

Since the three wires of the W phase are arranged (the two magnetically cancel each other out and have almost no effect on the other wires), as explained in the configuration section (-connection wire 13 Although it is slightly different from the case in Figure 4, it is functional (2 is a complete null flux circuit, so the left and right guidance effect of the vehicle due to the null flux effect is sufficient (-Don't get it, stupid Q (13P,
13R and 13S, the connecting wires can be connected in 3 coils (approximately 21 places) with the groove 5E or conduit tube that connects the left and right propulsion guide coils, so there is no influence on the levitation coils on the track or on the tire running surface. It can be done with very little effort.

Furthermore, when comparing the current required for propulsion and the Null flux effect (2), the current required for propulsion is much (= larger) than the Null flux effect current flowing through the connection wire. The cross-section of the connecting wire can be reduced to a certain degree, and only the easily handled small-section wire can be passed between the left and right propulsion guide coils, so the large-section wire that can handle large currents is almost straight ( 1. Since it is used, wiring work is also required (2. It is extremely easy to do (2.2 can be met).

It is possible to provide an excellent track and coil structure in which the coil structure is matched with an extremely rational civil engineering structure that cannot be achieved using the conventional method of drawing out the electric wires of the propulsion guide coil as shown in FIGS. 2 and 3.

Embodiment FIG. 12 shows an example in which the propulsion guide coil is placed on the track 5BAf, with only the wiring groove of the track 5BAf (two embeddings are performed 51)A. In this case, the 3M propulsion guide coil is basically (
2 is the same as the propulsion guide coil 3F in the case of FIG. With this kind of structure, there will be fewer surface irregularities on the track side, so the number of construction steps will be significantly reduced (by 1).

Next (2) As shown in Figure 13, the electric wire terminal terminal is connected to the electric wire and connecting wire 12D in the U-shaped insulator groove structure 3JA.
After inserting P and fixing the terminals 21 and 22 with the terminal board 19 (= bolts 23), cover with the lid, fix with insulating bolts such as polycarbonate in 5, pressure feed the insulating material through the hole in 26, and attach the lid and 3JA The pre-metal inside the U-shaped insulating groove structure is filled with insulating material to obtain withstand voltage.

In this way, it is possible to form a reliable insulation opening without the need for special tools for injecting the insulator.

FIGS. 15 and 16 show still other examples. 3FA.

The propulsion guide coil of the 3FB not only generates an acting force in the direction of making the coil round due to its rotation, but also the force that propels the vehicle is mainly exerted on the vertical sides of the propulsion guide coil (although the two act on the propulsion guide coil of the present invention). The vertical sides are fixed because there is a wiring groove at the rear.In order to receive this force (as shown in Figure 2, Part 16), each molded coil of 3FA and 3FB has a slight taper on the outer periphery of the vertical side. In between, a non-conductive strength member such as FRP with a tapered shape and a surface that matches the surface of the propulsion guide coil (two-way beam 27 embedded in the track with two screw seats 30f and two bolts 29 can be used to secure the propulsion guide). At the same time as the space between the coils is filled, it is possible to expect the effect of preventing the deformation of the vertical sides of the propulsion guide coil, which tends to deform during the operation period, thereby allowing the propulsion guide coil of the present invention to be used more effectively. becomes possible.

In addition, in order to protect the electric wires in the wiring groove, use a vinyl sheet to protect the electric wires, or coat the groove with a smooth surface or insert a tray of insulating material into the groove. It is also an effective means to do something like this.

g) Overall Effect As mentioned above (- Conventional propulsion and guide coils often have problems in adapting to the track.The present invention has a preferable shape compared to the track structure, and therefore, Civil engineering work on the track is easy, and the wiring between the propulsion guide coils can be easily connected, and the wiring to obtain the null flux effect is not troublesome because it can be connected between the left and right guide magnets all at once. Easily handle convulsions.Others (2nd, 14th)
As shown in the figure (-), when the two propulsion guide coils are reproduced at the factory and stocked or transported, the electric wires should be extended inward of each of the six propulsion guide coils, and the two should be placed back and forth. The direction of the lead wire makes it easy to store and transport, as it can be stacked in any number of tiers.The main advantage is that it can be freely removed and replaced during maintenance and inspection of the propulsion guide coil. .

[Brief explanation of the drawing]

Figure 1 is a basic sectional view of a superconducting magnetic levitation vehicle, Figure 2 is
Fig. 3 is a schematic diagram of the arrangement of the conventional propulsion guide coil; Fig. 4 is a diagram showing the null flux characteristics of the conventional propulsion guide coil; Fig. 5 is an explanatory diagram of the trajectory in which the ground coil is embedded; FIG. 6 is a basic sectional view of the propulsion guide coil and track structure according to the present invention, and FIGS. 7 and 8 are tables of the propulsion guide coil according to the invention. A perspective view from the back, Figure 9 is a detailed view of the main part of Figure 8, and Figure 1
Figure 0 is a wire connection diagram between each coil according to the invention, Figure 11 is a wiring diagram showing the connections of the left and right propulsion guide coils, and Figure 12 is another embodiment of the present invention (two propulsion guide coils and Figure 13 is a diagram showing the structure of the lead-out part in Figure 12, Figure 14 is a diagram showing the storage of the propulsion guide coil according to the present invention,
15 and 16 are side and cross-sectional views of the propulsion guide coil of the present invention.
3D... conventional propulsion guide coil, 3F, 3ivi...
・The present invention (two propulsion guide coils, 3J, 3JA...
U-shaped groove structure, 48-4D... Levitation coil 5B... Track structure based on this discovery, 5C... Groove for propulsion guide coil, 5D... Groove for wiring, 5E... Left and right Groove connecting wiring grooves, 10A, IOB, IOC...outlet portion, 13
A~13V...Null 7 books connection wire, 17...Cover, 18...7m, 19...Terminal board,
21.22...Terminal, (7317)
Agent Patent Attorney Noriyuki Chika (and 1 other person) Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 10 -237- Fig. 12 Fig. 13

Claims (2)

[Claims] (1) A superconducting magnetically levitated vehicle having a U-shaped cross section and having a levitation electromagnetic coil on its inner horizontal plane and a pair of vertical planes (a pair of thrust guide magnet coils), A groove with a rectangular cross section is provided in each of the pair of vertical surfaces, and further, two small grooves are provided in the bottom surface of the groove, and a flat mouth-shaped propulsion system internal coil is embedded in the groove,
A track for a magnetically levitated vehicle such as a superelectric vehicle, which is covered with a lid and has a flat surface on the outside, and has a contact hole connected to a coil terminal embedded in the small groove. (2) The track for a superconducting magnetically levitated vehicle as set forth in claim 1, wherein the city magnet coil for propulsion guide has an outlet terminal 1411f-projected inside the coil which is collapsed parallel to the plane of the coil.