JPH097831A - Ground coil for magnetic levitation system railway use - Google Patents

Abstract

PURPOSE: To make it possible to prevent noise, which is generated from the vicinites of the current conduction terminals of a ground coil for a magnetic leviation system railway use at the time of the high-speed traveling of a magnetic levitation system train, from being generated and to provide the highly reliable ground coil for the magnetic levitation system railway use. CONSTITUTION: The current conduction terminals of a levitation guide coil (a molded coil) 1, which has conductor coils, a molding resin layer 4 covering the outer peripheries of the conductor coils and current conduction terminals extracted from the conductor coils, are extracted in parallel to the low wall part of the track of a magnetic levitation system railway. Moreover, the traveling side, which is positioned in the vicinities of the current conduction terminals extracted in parallel to the low wall part of the track, of a magnetic levitation system train is covered with the layer 4. Thereby, the traveling side of the magnetic levitation system train of the coil 1 is formed into a smooth form and it becomes possible to prevent noise, which is generated from the vicinities of the current conduction terminals, from being generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic levitation railway ground coil, and more particularly to a wind noise prevention structure near a terminal portion when a train is passing.

[0002]

2. Description of the Related Art A magnetic levitation train is a magnetic levitation train installed on a concave magnetic levitation railway track called a guideway, which is composed of a bottom wall and side walls provided in parallel to both ends thereof. It floats and runs due to the magnetic force generated by the levitation railway ground coil (superconducting coil). Specifically, it is propelled by a propulsion coil which is arranged and attached in the advancing direction of the magnetic levitation train so as to face the side wall of the guideway.
The levitation guide coil is installed inside the propulsion coil (on the side of the magnetic levitation train) to levitate.

By the way, among the above-mentioned magnetic levitation railway ground coils, the levitation guide coil arranged on the magnetic levitation train side has been conventionally used in Japanese Patent Laid-Open No. 4-58503, IEEJ Transactions D, Industrial Stress. As is known in the magazine, Vol. 112, No. 5 (published in May, 1992), etc., it is equipped with a conductor coil in the shape of a figure 8. From this conductor coil, the current-carrying terminal is pulled out. There is.

Due to the space limitation of the guideway, the current-carrying terminal is drawn out vertically in the direction of the bottom wall of the guideway, and is connected to another current-carrying terminal through the null-flakes connected by bolts and nuts. ing.

[0005]

The speed of the magnetic levitation train operates at an extremely high speed of 500 km / h. The gap between the magnetic levitation train and the levitation guide coil is about 10
Very small in cm. From this, the levitation guide coil
A mold member is used to make the surface smooth so that noise is not generated by wind pressure when running a magnetically levitated train.

However, when the magnetic levitation train is running, since the current-carrying terminals that are vertically drawn out from the conductor coil in the direction of the bottom wall of the guideway are not provided with those that cover the surface of the current-carrying terminals. It can be one of the causes of noise generated by wind pressure. In addition, the noise can also be caused by the uneven portion formed when the energizing terminal and the null flack wire are connected by bolts and nuts.

The present invention has been made in view of the above points, and an object of the present invention is to generate a noise generated from a vicinity of a current-carrying terminal of a magnetic levitation railway ground coil during high speed running of a magnetic levitation train. (EN) Provided is a highly reliable magnetic levitation railway ground coil capable of preventing the above.

[0008]

Means for Solving the Problems A magnetic levitation railway ground according to the present invention, which is attached to the side wall portion of a substantially concave track having a bottom wall portion and side wall portions provided on both sides of the bottom wall portion in parallel. In order to achieve the above object, the coil has a magnetic levitation railway including a conductor coil, a mold resin layer covering the outer periphery of the conductor coil, and a current-carrying terminal drawn from the conductor coil. The magnetic levitation train running side of the ground coil is covered with the mold resin layer including the energizing terminals.

Specifically, a magnetic levitation railway ground coil having a conductor coil, a mold resin layer covering the outer periphery of the conductor coil, and a current-carrying terminal drawn from the conductor coil. In the above, the energizing terminal was drawn out in parallel to the bottom wall portion, and the magnetic levitation train running side near the drawn out energizing terminal was covered with the mold resin layer.

Further, the magnetic levitation is also applied to a connecting portion with the conductor coil adjacent to the magnetic levitation train running direction or a connecting wire connected to the energizing terminal drawn from the opposing conductor coil. The train running side was covered with the mold resin layer.

[0011]

As described above, according to the present invention, the current-carrying terminal is drawn out horizontally from the conductor coil, that is, in parallel with the bottom wall of the track so that the magnetic levitation train running side is covered with the mold resin layer. By doing so, the energizing terminal which may cause noise, and the conductor coil adjacent to the magnetic levitation train traveling direction, or the connecting wire connected to the energizing terminal drawn from the opposing conductor coil The connecting portion is arranged on the side opposite to the magnetically levitated train. Therefore,
The magnetic levitation railway ground coil has a smooth running side on the magnetic levitation train.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

A magnetic levitation railroad track, which is called a guideway on which a magnetic levitation train runs, is formed in a concave shape by a bottom wall portion and parallel side wall portions provided at both ends thereof. A magnetic levitation railway ground coil (superconducting coil) is attached to the side wall of the guideway in order to levitate and run the magnetic levitation train.

Specifically, in order to propel the magnetic levitation train, a propulsion coil is arranged and attached in the traveling direction of the magnetic levitation train so as to face the side wall of the guideway. Further, in order to levitate the magnetic levitation train, a levitation guide coil is arranged inside the propulsion coil (on the side of the magnetic levitation train) so as to face the traveling direction of the magnetic levitation train, like the propulsion coil. .

As described above, among the installed magnetic levitation railway ground coils, the magnetic levitation train and the gap are about 10
The levitation guide coil, which has only cm, is made of a molded material to prevent noise from being generated by wind pressure from a magnetic levitation train running at an extremely high speed of 500 km / h. Since it is pulled out perpendicularly to the bottom wall direction, it may cause noise. Therefore, in this embodiment, the floating guide coil as shown in FIG. 1 is used.

FIG. 1 is a plan view showing the appearance of the levitation guide coil (molded coil), FIG. 2 is an enlarged view of the vicinity of the energizing terminal of FIG. 1 seen from the back side, and FIG. 3 is a view in the traveling direction of the magnetic levitation train. FIG. 4 is a view of the connection between the energization terminal and the null flank wire between the adjacent levitation guide coils as viewed from the back side. FIG. It is the figure seen from the back side.

As shown, the levitation guide coil 1
The (mold coil) is composed of a conductor coil 2, a current-carrying terminal 3 drawn therefrom, and a mold resin layer 4 covering the outer periphery of the conductor coil 2.

The conductor coil 2 is formed by applying an insulating layer to a conductor coil (element wire) and winding it a plurality of times to form four substantially rectangular conductor coils 2a to 2d. The coils 2a to 2d are combined with the conductor coils 2a and 2b and the conductor coils 2c and 2d to form two sets of 8-shaped conductor coils, and these two sets of 8-shaped conductor coils are formed. Are formed integrally.

From each of the two sets of 8-shaped conductor coils, current-carrying terminals 3a, 3b for taking in electric power are provided.
Has been withdrawn. Conventionally, as described above, the current-carrying terminals were pulled out vertically to the direction of the bottom wall of the guideway. However, in the present embodiment, the current-carrying terminals 3a and 3b are connected to the bottom wall of the guideway. It is pulled out in parallel. That is, the energizing terminal 3a is horizontally drawn out in contact with the lower sides of the conductor coils 2b and 2d, and the energizing terminal 3b is horizontally drawn out in the right direction.

The mold resin layer 4 of reinforced fiber plastic (FRP) covering the outer periphery of the conductor coil 2 is a proform mat made of reinforcing fibers such as glass fibers formed in conformity with the shape of the mold resin layer 4. (Fiber substrate)
It is formed by wrapping the conductor coil 2 in a mold and placing it in a mold, and then injecting a thermosetting resin containing glass fibers into the mold to perform thermosetting treatment. The method of forming in this way is called SMC molding method (sheet molding compound molding method).

By the way, as described above, the energizing terminal 3
a and 3b are in the traveling direction of the magnetic levitation train, that is, the lower sides of the conductor coils 2b and 2d are in contact with each other and the energizing terminal 3a is in the left direction,
The current-carrying terminal 3b is horizontally drawn out to the right and has a conductor coil adjacent to the magnetic levitation train running direction, or
The null flakes 7 connected to the current-carrying terminals drawn from the opposing conductor coils must be connected by bolts and nuts 8. Therefore, the mold resin layer 4 of this embodiment is overhung so that the surface of the magnetic levitation train running side in the vicinity of the portion (area) where the energizing terminals 3a and 3b are horizontally drawn out is covered with the mold resin layer 4. The part 6 is formed.

Therefore, as shown in FIG. 2, the energizing terminal 3 is arranged on the side opposite to the magnetic levitation train of the levitation guide coil 1.

Further, as shown in FIGS. 3 and 4, a connecting wire connected to a conductor coil adjacent to the magnetic levitation train traveling direction or a conducting terminal drawn from an opposing conductor coil, that is, Bolts and nuts 8 with null flakes 7
Also, the connection part by is arranged on the side opposite to the magnetic levitation train of the levitation guide coil 1. In the figure, reference numeral 5 is a mounting hole formed by machining after curing the mold resin layer 4.

As described above, according to this embodiment, the energizing terminal 3 drawn out from the conductor coil 2 is brought into contact with the traveling direction of the magnetic levitation train, that is, the lower sides of the conductor coils 2b and 2d, and the energizing terminal 3a is The left and energizing terminals 3b are drawn out horizontally to the right, and the overhanging portion 6 is formed so that the surface of the magnetic levitation train running side in the vicinity thereof is covered with the mold resin layer 4.
Therefore, the running side of the magnetic levitation train of the energization terminal 3 is covered by the overhang portion 6 formed in the mold resin layer 4. In addition, as shown in FIGS. 3 and 4, a connection portion between the levitation guide coils adjacent to each other in the traveling direction of the magnetic levitation train and a connecting portion 9 formed by bolts and nuts 8 and an opposing levitation guide coil. The connection portion between the energizing terminal 3 and the null flank wire 7 by the bolt and nut 8 is also covered. This makes the entire surface of the magnetically levitated train running side smooth.

Therefore, the current-carrying terminal 3 of the levitation guide coil 1
No noise is generated in the vicinity or in the uneven portion formed when the energizing terminal 3 and the null flak wire 7 or the connecting wire 9 are connected by the bolt / nut 8.

[0026]

According to the present invention, it is possible to prevent the noise generated from the vicinity of the energizing terminals of the magnetic levitation type ground coil for a magnetic levitation train during high-speed running of the magnetic levitation train, and to achieve a highly reliable magnetic levitation. A ground railway coil can be provided.

[Brief description of drawings]

FIG. 1 is a plan view showing the appearance of a levitation guide coil (molded coil).

FIG. 2 is an enlarged view of the vicinity of the energizing terminal of FIG. 1 as seen from the back side.

FIG. 3 is a view from the back side showing how the energization terminals and connection lines are connected between the levitation guide coils that are adjacent to each other in the traveling direction of the magnetic levitation train.

FIG. 4 is a view of the connection between the current-carrying terminal and the null flank wire in one of the levitation guide coils between the levitation guide coils facing each other as seen from the back side.

[Explanation of symbols]

1 ... Levitation guide coil (mold coil), 2, 2a, 2
b, 2c, 2d ... Conductor coil, 3, 3a, 3b ... Current-carrying terminal, 4 ... Mold resin layer, 5 ... Mounting hole, 6 ... Overhang portion, 7 ... Null flack wire, 8 ... Bolt / nut, 9 ... Connection line.

Claims (3)

[Claims] 1. An electric conductor coil and an outer periphery of the electric conductor coil, which are attached to the side wall portion of a substantially concave orbit formed of a bottom wall portion and side wall portions provided in parallel to both sides of the bottom wall portion. A magnetic levitation railway ground coil comprising a mold resin layer for covering and a current-carrying terminal drawn out from the conductor coil, wherein the magnetic levitation train running side of the magnetic levitation railway ground coil is A magnetic levitation type ground coil for a railway characterized in that it is covered with the mold resin layer including terminals for energization. 2. An electric conductor coil and an outer periphery of the electric conductor coil are attached to the side wall portion of a substantially concave orbit formed of a bottom wall portion and side wall portions provided on both sides of the bottom wall portion in parallel. In a magnetic levitation railway ground coil having a covering mold resin layer and an energizing terminal drawn out from the conductor coil, in which the energizing terminal is drawn out in parallel with the bottom wall portion, A magnetic levitation railway ground coil, characterized in that the magnetic levitation train running side near the drawn out current-carrying terminal is covered with the mold resin layer. 3. The vicinity of the energizing terminal is connected to the conductor coil adjacent to the magnetic levitation train traveling direction, or a connecting wire connected to the energizing terminal drawn from the opposing conductor coil. The magnetic levitation railway ground coil according to claim 2, further comprising a connecting portion.