JPH05121229A - End levitation guide coil for superconductive magnetic levitation type railway - Google Patents

Abstract

PURPOSE:To constitute an end levitat guide coil, which raises the levitation property, reduced the temperature rise of the coils, and elevates the economical efficiency of the manufacturing cost, by improving the constitution of the end levitation guide coils arranged on both ends of the sidewall of the track of the discontinuous part of a superconductive magnetic levitation railway. CONSTITUTION:Out of four simple coils constituting an end levitation guide coil 13, two exclusive simple coils are made of copper windings which get off with narrow sectional area, and this and two pieces of simple coils 6A exclusively used for an aluminum standard levitation guide coil are combined, and this is molded with resin, diverting a mold for the standard levitation guide coil to this, and the surplus resin at the end is shaved off to get an end levitation guide coil excellent thermally and characteristically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end levitation guide coil on a track side wall of a magnetically levitated railway using superconductivity.

[0002]

2. Description of the Related Art A superconducting magnetic levitation railway has a vehicle and a track for driving and driving functions. It is composed of. In order to support the above three systems, a ground coil in which coils are continuously arranged on the track side and a superconducting magnet that generates a DC magnetic field on the vehicle side are mounted in the vehicle connecting portion. A superconducting magnetic levitation railway will be described based on the conventional example shown in FIGS. Superconducting magnets 2 are mounted on both left and right sides of the vehicle 1, and side walls 4 are provided on both sides of a track 3 on which the vehicle 1 travels.

The structure of the side wall 4 includes a structure in which panels are attached to both sides of the track 3, a structure in which a dedicated seat is provided on the track 3 to install a beam, and a structure in which the side wall is directly mounted on the track 3. A propulsion coil 5 serving as a propulsion system, a guide system, and a levitation guide levitation guide coil 6 are arranged in these units.
The left and right side walls 4, 4 '...
Are arranged in series with a predetermined gap 7 as shown in FIG.

The standard section by the side wall 4 to which the standard levitation guide coil 6 is attached occupies most of the track 3. However, in a special section such as a branch portion and a bridge section of the track, securing the movement amount of the track and heat shrinkage. it is necessary to secure a wide gap 8 from the gap 7 for absorption, hence will be laid side wall 4 'of the standard 4 length 4 _a shorter length _B, and the both end portions of the side wall in the special section Dedicated end levitation guide coils 9 are arranged, and standard levitation guide coils 6 are arranged in the middle part other than both ends.

The standard levitation guide coil 6 and the end levitation guide coil 9 are each formed of four standard levitation guide coil dedicated unit coils 6 _A and end levitation guide coil dedicated unit coils 9 _{B in} terms of performance and mounting. However, due to the above-mentioned dimensional restrictions, the end floating guide coil length A is shorter than the standard lift guide coil length B.

Further, although the end levitation guide coil 9 and the standard levitation guide coil 6 are each provided with four propulsion coil mounting bolt inspection holes 10, the propulsion coil mounting bolts provided in the end levitation guiding coil 9 are provided. The interval 11 between the inspection holes 10 and the interval 11 between the left and right propulsion coil mounting bolt inspection holes 10 on the standard levitation guide coil 6 are arranged at the same interval.

Due to the dimensional relationship between the inspection holes 10, 10 ... And the shortened end levitation guide coil length B, the cross-section width 12 _B of the end levitation guide coil dedicated unit coil is the standard levitation guide coil dedicated unit coil cross section. It must be smaller than the width 12 _A.

Both the standard levitation guide coil 6 and the end levitation guide coil 9 are formed by forming aluminum wires into windings, and each of these four dedicated unit coils 6 _A , 6 _A, ... And dedicated unit coils 9 _B , 9 _B ... are arranged in 88-characters to form one set, and resin-molded in a dedicated mold, and the standard floating guide coil dedicated unit coils 6 _A , 6 _A are set as one set, and are also set up and down. The unit coils 9 _{B for} exclusive use of the end levitation guide coils 9 _B and 9 _B are set as one set, and are electrically connected in a figure eight shape.

[0009]

As described above, the levitation guide coil is manufactured by a mass production method in which the unit coil is resin-molded with a dedicated die, and therefore, it is suitable for manufacturing a large number of standard levitation guide coils 6. However, since the required number of the end levitation guide coils 9 is small, the number of the end levitation guide coils 9 is small, resulting in a high die manufacturing cost and an increase in manufacturing cost.

Further, in the end part levitation guide coil 9, the section width 12 _B of the unit coil is narrower than that of the standard levitation guide coil due to the above-mentioned size restriction, so that the coil conductor cross section becomes small and the levitation characteristic is deteriorated. In addition, the coil temperature rises due to the increase in current density.

In view of the above, it is an object of the present invention to improve the structure of the end levitation guide coil to reduce the manufacturing cost, improve the levitation characteristics, and reduce the rise in coil temperature.

[0012]

In order to achieve the above-mentioned object, the present invention is an end levitation guide coil. Among four unit coils, the upper and lower two, which are not on the end gap side, are conventional aluminum wire coils. Is a unit coil dedicated to the standard levitation guide coil that is connected in a figure 8 with copper wires for the upper and lower two on the end side of the air gap, and the coil with the same coil characteristics is used for the end levitation guide coil A unit coil is used, and these are combined and resin-molded using a standard floating guide coil dedicated die.

[0013]

The unit coil dedicated to the end levitation guide coil is a copper coil and has the same characteristics as the aluminum winding, so that the unit coil cross-sectional width can be reduced. After the resin molding, the surrounding resin mold is shaved to reduce the overall size.

[0014]

The present invention will be described based on the embodiment shown in FIG. The end levitation guide coil 13 is configured as follows.

Of the four unit coils constituting the end levitation guide coil 13, two units above and below the standard levitation guide coil use a unit coil 6 _A dedicated to the standard levitation guide coil wound with an aluminum wire, and have a figure 8 shape. Make connections. The upper and lower two that become the end side
For each unit coil, a copper wire wound and connected in a figure 8 is used as a unit coil 13 _C dedicated to the end levitation guide coil and combined with the unit coils 6 _A and 6 _A dedicated to the standard levitation guide coil,
Manufactured by resin molding with a special die for standard floating guide coil.

At this time, since the unit coil 13 _C dedicated to the end levitation guide coil uses a copper wire, if the same coil characteristic as that of the aluminum coil is used, there is a margin in the electric characteristic, and the sectional width 12 _C is Can be made smaller. Therefore, the standard mold is diverted for resin molding, and the excessively large resin portion 14 on the end portion side is scraped off by post-processing due to the above-mentioned dimensional constraint, and the required dimension is finished.

Since it is possible to do in this way, the end floating guide coil 13 can use the mold of the standard floating guide coil 6 in its production, and the coil is made of copper wire to improve the heat and characteristics. To be done.

When the panel length is set to 12, 54 m and the vehicle speed is set to about 100 Km / h, the pulsation of the present invention is reduced to about 88% of the conventional one, and the temperature rise is set to about 74%. Will be reduced.

[0019]

Industrial Applicability According to the present invention, a die for a conventional standard levitation guide coil is diverted to manufacture the end levitation guide coil to reduce the cost and improve the thermal and coil characteristics. Will be done.

[Brief description of drawings]

FIG. 1 is a front view of an edge levitation guide coil according to the present invention.

FIG. 2 is a cross-sectional view of a magnetic levitation railway.

FIG. 3 is a partial plan view of a side wall of FIG.

FIG. 4 is a side view of a conventional side wall.

[Explanation of symbols]

4 Side wall 5 Propulsion coil 6 Standard levitation guide coil 9, 13 End levitation guide coil 6 _A Standard levitation guide coil dedicated unit coil 9 _B , 13 _C End levitation guide coil dedicated unit coil

Claims (1)

[Claims] 1. An aluminum winding in an end levitation guide coil of a magnetic levitation type railway arranged on a discontinuous portion of the track side wall among track side walls in which ground coils such as a propulsion coil and a standard levitation guide coil are arranged. An end portion of a superconducting magnetic levitation railway characterized in that it is composed of a unit coil dedicated to the standard levitation guide coil by a wire and an end levitation guide coil unit coil having the same coil characteristics as this coil and a copper winding. Levitation guide coil.