JPS63290102A - Magnetic shield structure of magnetic levitation vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic shield structure for a magnetically levitated vehicle, and particularly to a magnetically shielded structure for a magnetically levitated vehicle suitable for suppressing the influence of magnetism on the passenger compartment. It is related to.

[Traditional technical voice]

In recent years, magnetic levitation vehicles have been developed that use magnetism to levitate the vehicle body while traveling. By the way, since the magnetic levitation vehicle utilizes strong magnetism for its levitation means, travel drive means, etc., there is concern that the magnetic lines of force may affect the inside of the vehicle. Therefore, a countermeasure has been considered to suppress the influence of the magnetic lines of force by installing a magnetic shielding material on the upper part of the truck. (For example, Railway Technology Vol. 1.43 No. 10 Railway Technology Research Institute, October 1986) By the way, as a magnetic shielding material to date, a sandwich structure consisting of an iron plate and wood has been used. That is, as shown in FIG. 3, the structure was such that a wood 7 was used as a core material and iron plates 8 were attached to both sides of the core material.

[Problem that the invention seeks to solve]

In the above-mentioned configuration, shielding of magnetic lines of force was not sufficient, and sufficient consideration was not given to weight reduction.

An object of the present invention is to provide a magnetic shield structure for a magnetically levitated vehicle that can reliably shield magnetism and reduce weight.

[Means for solving problems]

The above object is achieved by employing a superconducting material that can be in a superconducting state at room temperature as a magnetic shielding member. Note that the superconducting material is constructed as a laminated material with a non-metallic material such as wood or reinforced plastic material.

[For production]

By using a superconducting material that becomes superconducting at room temperature for the magnetic shield in the magnetic levitation I restraint, it is possible to shield magnetic fields more effectively than the conventionally used iron plates, and also by making the material thinner. The weight can be reduced.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained with reference to FIG. 1 and the second panel. In the figure, a side structure 2 forming the vehicle body of the magnetic levitation vehicle is a side beam joined to the lower end of the side structure 1. Chain beams 2 attached to both sides of the vehicle body are connected via a horizontal beam 3, and a floor plate support 4) 5 is installed in the middle of the horizontal beam 3. Reference numeral 5 denotes a floor plate supported by the floor plate support 4, which is made of a laminated material of a superconducting material 6 and a wood 7. This floorboard 5 is installed on the entire floor inside the car.

In this configuration, magnetism, that is, lines of magnetic force generated in the running gear that supports the vehicle body at its lower part are almost completely blocked by the superconducting material 6, so that problems caused by lines of magnetic force inside the vehicle can be prevented. In addition, superconducting material 6
By laminating the floorboard 5 with the wood 7, the weight of the floorboard 5 itself can be reduced, and in particular, due to the high magnetic shielding efficiency of the superconducting material 6, the floorboard 5 itself can be made thin and favorable. By the way, the superconducting material 6 becomes a superconducting state at room temperature, that is, at a low temperature inside the vehicle; for example, it is a fired mixed ceramic made of yttrium, barium, copper oxide, etc.

According to such a configuration, by being able to block the magnetic lines of force into the vehicle interior, the adverse effects of magnetism can be suppressed, and by reducing the weight of the floorboard 3 itself, it is possible to reduce the weight of the entire vehicle.

In addition, in the above-mentioned embodiment, explanation was given of a regular meeting in which superconducting material was used only for the floorboard, but the present invention is not limited to this, and superconducting material may be installed up to a position raised upward from the floor surface. The magnetic shielding may be completed completely, and the magnetic shielding can be performed even more effectively by using a material in which a superconducting material is laminated on the outer panel of the vehicle body.

〔Effect of the invention〕

As explained above, according to the present invention, reliable shielding from magnetism and weight reduction of the vehicle body can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a vehicle body equipped with an embodiment of the magnetic shield structure according to the present invention, Fig. 2 is an enlarged sectional view of Af; 8 in Fig. 1, and Fig. 3 is a sectional view showing a conventional floor plate. be. 1-------One side structure, 2-------One side beam, 3-11111 side beam, 4-------One floor plate holder, 5------
One floor board, 42 and 43 figures

Claims (1)

[Claims] 1. A magnetic shield structure for a magnetic levitation vehicle, characterized in that a laminated material made of superconducting material is installed between the interior space of the vehicle and a magnetic field generating section.