JPH0488810A - Magnetic levitated car - Google Patents

Abstract

PURPOSE:To prevent the mutual intervention of floating force and driving force by installing first magnets oppositely faced to the underside of iron frames on both sides of a track in recessed sections on the lower side of a car and second magnets oppositely faced to primary coils disposed in upright at the central section of the track on both sides of the car. CONSTITUTION:A track 2 is formed onto a support beam 1 with an H-shaped cross section, and reaction plates 2b are mounted on both sides of the track 2. A ground primary coil 5 is disposed in upright so that a plate surface is made perpendicular in the longitudinal direction along the track 2 at the central section of the top face of the track 2. Both sides of a magnetic levitated car 3 are curved and surround the reaction plates 2b, and first electromagnets 3b for levitation guidance set up at the front end sections of both sides of the car 3 are faced oppositely to the reaction plates 2b from the lower side, thus levitating the car 3. Two magnets 6 for propulsion are mounted into recessed sections on the lower side of the car 3, and faced oppositely to the ground primary coil 5, thus constituting a linear motor for propulsion. Accordingly, the interference of floating force and driving force is prevented, thus omitting supply to the car side of driving power.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a magnetically levitated vehicle suitable for use in, for example, levitated railways such as linear motor cars.

"Prior Technology" In recent years, various floating railways have been developed in which electromagnets, etc. are mounted on the train, and the train can be levitated, guided, and driven by electromagnetic interaction with magnetic materials, conductors, or coils laid on the ground. ing.

Figure 2 shows a magnetic levitation vehicle in such a levitation railway.
It is a sectional view showing an example of both. In this figure, 1 is a support girder with a convex cross section, and 2 is a track provided on each of the support girders. Reference numeral 2a denotes a rear axle lamp plate, which is a plate-shaped conductor laid along the track 2. , 2b4 are aboveground steel girders installed on both sides of the track 2. 3 is a magnetically levitated vehicle, and each part (therefore, 4 on track 2) will be described later.
It floats and travels while maintaining a predetermined gap. 3a is a linear induction motor, which is mounted on the left and right sides of the bottom of the magnetically levitated vehicle 3 so as to face the rear cooler 1 pump route 2a mentioned above. Reference numeral 3b denotes a floating guide electromagnet disposed at a position facing the above-ground steel girder 2b. 4 is current collecting shoes and current collecting equipment. This current collection/collection equipment 4 is provided on the support girder 1 and supplies the required electric power to the magnetic levitation vehicle 3.

According to such a structure, the magnetic levitation vehicle 3 uses an on-vehicle primary near induction motor drive system, that is, an interaction between the moving magnetic field generated by the linear inductance motor 3a and the induced current generated in the rear tank and the pump 2a. The driving force is obtained by Furthermore, by controlling the attractive force of the top-guiding electromagnet 3b, the gap between the rail and the track 2 can be maintained at an appropriate value of 7. Due to the kneading, the magnetically levitated vehicle 3 travels on the track 2 while being guided by levitation.

Next, an example of a magnetic levitation vehicle using a ground primary synchronous linear motor drive method is shown in FIG.
are aboveground steel girders installed along both sides of the track 2.

2d is a ground primary coil installed along the lower surface 4 on both sides of the track 2; 2e is this ground primary coil; This is the iron core of d. Reference numeral 3c denotes a levitation propulsion electromagnet 5, which is disposed on the vehicle side so as to face the above-mentioned ground primary coil 2d. 3d is a guide electromagnet disposed on the vehicle so as to face the aboveground steel girder 2c.

The magnetically levitated vehicle 3 having the above structure levitates while keeping an appropriate gap on the track 2 by controlling the attractive force of the iron core 2e and the levitation propulsion electromagnet 3c.

Furthermore, by controlling the attractive force of the above-ground iron girder 2c and the guide electromagnet 3d, an appropriate gap between the track 2 and the track 2 is maintained. On the other hand, the ground primary coil 2d and the levitation propulsion electromagnet 3c constitute a synchronous linear motor, and the magnetically levitated vehicle 3 is driven in synchronization with the moving magnetic field generated by the ground primary coil 2d.

"Problems to be Solved by the Invention" By the way, in the magnetic levitation vehicle of the above-mentioned on-vehicle primary near induction motor drive system, the linear induction motor 34 mounted on the vehicle is It is necessary to supply This driving power is supplied through the current collection/collection equipment 4, and in particular, when such a vehicle is run at high speed, a large amount of power must be collected. .

However, collecting a large amount of power during high-speed running requires many technical developments, and even if this were achieved, a great deal of effort would be required for collecting current, inspecting and maintaining the current collecting equipment 4, etc. In addition, when the linear induction motor 3a is operated in a high-speed range, the driving efficiency decreases due to a phenomenon called "end effect", and the driving force decreases. In both cases, as the speed increases, the @I of the linear induction motor 3a and the power supply device of the vehicle increases, and the installation space becomes smaller.

In addition, in the above-mentioned suction guided levitation, the levitation and driving of one vehicle are performed by the levitation propulsion electromagnet 3C. , power and power interfere with each other. For example, if the number of levitation blades is increased, the driving force will also increase accordingly.Furthermore, this levitation propulsion electromagnet 3C is installed on both sides of the vehicle. Placed on - up, from the left,
An imbalance occurs in the right drive and power. Therefore, in order to run the vehicle stably, there is a problem in that it becomes difficult to control the floating blade and the driving force.

This invention was made in view of the above-mentioned circumstances. [It is an object of the present invention to provide a magnetically levitated vehicle that can run at high speed without the need for a magnetic levitation vehicle and that can easily achieve stable running.

"Means for Solving the Problem" The present invention provides a first section of a vehicle 0111 that is provided in a vehicle 0111 section so as to extend from the lower surface of an iron girder disposed along both sides of a track.
a magnet, a ground primary coil formed in a plate shape and laid along the center of the track so that the plate surface is perpendicular to the plate, and a 1F4JIII wall shield in a groove formed in the center of the bottom of the vehicle. and a second magnet disposed such that its magnetic poles face each other via the ground primary coil, and is levitated and guided by the attractive force of the first magnet, and the ground primary coil and the second It is characterized by being driven by a synchronous linear motor consisting of a magnet and a magnet.

"Operation" According to the above configuration, the vehicle is floated and guided by the attractive force of the first magnet, and is driven by the synchronous linear motor composed of the ground primary coil and the second magnet.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings. JL diagram is a sectional view showing the structure of an embodiment of the present invention. In this figure, the same numbers are given to the stone parts that do not correspond to the respective parts in FIG. 2, and the explanation thereof will be omitted.

In Fig. 1, numeral 5 is a ground primary coil formed in the shape of a plate, and is laid along the track 2 so that the plate surface force (perpendicular) is maintained. This is a propulsion magnet.The name of this propulsion magnet is that it is installed on both side walls of a groove formed in the center of the bottom of the magnetically levitated vehicle 3. The propulsion magnets 6 and the ground primary coil 5 constitute a synchronous linear motor.Thereby, the magnetic levitation vehicle 3 is moved by the movement generated by the ground primary coil 5. Driven in synchronization with a magnetic field.

According to such a structure, since the magnetically levitated vehicle 3 is driven by the ground primary synchronous near motor drive system, there is no need to supply driving power to the vehicle 3. As a result, the vehicle 3 only needs to be provided with a small electric power Ji for supplying the levitation guide electromagnet 3b, interior lighting, etc., and this can be done by induction current collection, arc current collection, micro Wave current collectors, etc., or internal/external combustion engines installed in JEA,
This can be done using I-battery fuel cells, etc. therefore,
The limit on vehicle running speed is no longer dependent on electrical equipment.

Furthermore, synchronous linear motors do not have an "end effect" in the high-speed range, and the driving force must be reduced.
j & equipment pace and force (does not increase.

In addition, in the above structure, the magnetic 1 that guides the vehicle by levitation is
The stone and the propulsion magnet are installed separately, and the levitation blade and propulsion force are controlled by each, eliminating mutual interference between the levitation force and propulsion force, which was a problem in the past. Ru. In addition, since the synchronous linear motor is located in the center of the vehicle, the unbalanced thrust that has been a problem in the past is also resolved.

Note that the propulsion magnet 6 in the above-described embodiment can also be configured with a permanent magnet, and in such a case, the collected power can be further reduced.

Furthermore, in the embodiment described above, the levitation guide electromagnet 3<
Although the vehicle is guided while being suctioned and floated by four magnets, this may be divided into four electromagnets for levitation and one for guidance. In this case, by mounting the guiding electromagnet on the vehicle so as to horizontally oppose the above-ground steel girder 2b,
One-car guidance can be more easily controlled.

"Effects of the Invention" As explained above, according to the present invention, a vehicle is levitated and guided by the attraction force of one stone of Rin 4, and the vehicle is guided by the [type 3 type] consisting of a ground primary coil and a second magnet. Since it is driven by a linear motor, there is no need to supply driving power to the vehicle. Furthermore, the synchronous linear motor has no end effect J in the high-speed range, does not reduce the driving force, and does not increase the capacity or installation space of vehicle equipment.

Furthermore, by dividing the magnet into the first magnet and the second magnet, mutual interference between the floating blade and the propulsive force, which has been a problem in the past, can be eliminated. In addition, since synchronous linear motors are installed in the central part of both warehouses, the unbalance of thrust that has been a problem in the past is also resolved. As a result, it is possible to run at high speed without requiring large electric power Ji[, and moreover, it is possible to easily obtain stable running.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the structure of one embodiment of the present invention, and FIG.
3 to 3 are diagrams for explaining a conventional example. 3b... Levitation guide electromagnet (first magnet), 5.
... Ground primary coil, 6 ... Propulsion magnet (second magnet).

Claims (1)

[Scope of Claims] A first magnet provided on both sides of the vehicle to face the lower surface of the iron girders disposed along both sides of the track; a ground primary coil laid along the center of the track so that the ground primary coil is placed along the center of the track; 2 magnets, and is levitated and guided by the attractive force of the first magnet, and is driven by a synchronous linear motor composed of the ground primary coil and the second magnet. magnetic levitation vehicle.