JP4101372B2 - Charging rail for linear motor car - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charging rail that supplies electric power to an electric device mounted on a linear motor car (magnetic levitation railway vehicle).
[0002]
[Prior art]
Conventionally, there have been the following charging rails for supplying electric power to electric devices mounted on a linear motor car.
[0003]
FIG. 5 is a perspective view showing such a conventional charging rail for a linear motor car.
[0004]
In this figure, 101 is a guideway, 102 is its travel path, 103 is an insulating stand, 104 is a fixed charging rail arranged in parallel in a guideway at a specific point such as a station where a linear motor car stops. , 105 is a cable for supplying power to the two fixed charging rails 104, and 106 is a connecting portion between the cable 105 and the fixed charging rail 104.
[0005]
As described above, conventionally, two fixed charging rails 104 are arranged in parallel in a guideway at a specific point such as a station where a linear motor car stops, and a shoe is taken from a vehicle (not shown) facing the same. After being lowered onto each of the regular charging rails 104, the cable 105 is connected to a DC power source (not shown) having one of the fixed charging rails 104 as a positive pole and the other as a negative pole. Was supplied to the vehicle and the battery of the linear motor car was charged.
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional linear motor car charging rail, since the two fixed charging rails 104 are arranged in parallel, the conductor is placed on the fixed charging rail 104 arranged in parallel. There is a problem that a short circuit accident occurs between the two charging rails due to covering, falling over, or deterioration of insulation between the regular charging rails 104.
[0007]
In addition, since there is a short distance (for example, 60 cm) between the charging rails arranged in parallel, there is a problem that an electric shock is likely to occur between the positive and negative of the power source.
[0008]
In order to prevent such an electric shock accident, there has been proposed a structure in which a cover is provided on the charging rail except during charging, and the cover is removed during charging (for example, Japanese Patent Laid-Open No. 51-35011, JP Japanese Laid-Open Patent Publication No. 62-181929 and Japanese Laid-Open Patent Publication No. 62-181930 have problems that the structure is complicated and that inspection and maintenance are troublesome due to wear.
[0009]
The present invention eliminates the above-mentioned problems, arranges the fixed charging rails installed in the guideway in a line at regular intervals in the longitudinal direction in the guideway, and alternately arranges the positive and negative of the DC power supply. Thus, an object of the present invention is to provide a charging rail for a linear motor car that can prevent a short circuit accident and an electric shock accident.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides
[1] In the linear motor car charging rail, when the length of the linear motor car train is L, the distance between the above-mentioned fixed charging rails along the longitudinal direction in the guideway is the fixed charging rail. There (1/2) arranged in a row in the L become interval, and connects the ground-side positive and negative for each pole of the DC power supply alternately to the standard length charging rail, the linear motor of this Blank charging rail taken down from the car, it is obtained by the so that is brought into contact with a plurality of shoes disposed in the longitudinal direction of the linear motor car.
[0011]
[ 2 ] In the charging rail for a linear motor car described in [ 1 ] above, the fixed charging rail is configured as a set of plural pieces for each of the poles.
[0012]
[ 3 ] In the charging rail for a linear motor car described in [ 2 ] above, the fixed charging rail is configured as a set of two for each pole.
[0013]
[ 4 ] In the linear motor car charging rail described in [1] above, the fixed charging rail is laid over the entire guideway line.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a perspective view of a charging rail for a linear motor car showing a first embodiment of the present invention, and FIG. 2 is a schematic view of a charging state of the linear motor car by a fixed charging rail.
[0016]
In FIG. 1, 1 is a linear motor car guide way, 2 is a linear motor car travel path, 3 is arranged in a line at regular intervals in the longitudinal direction of the central portion of the guide way 1, and the positive and negative of the DC power supply are Alternately arranged fixed charging rails 4 are insulating materials provided on the road bed of the fixed charging rails.
[0017]
On the other hand, as shown in FIG. 2, a plurality of shoes 12 are lowered from the linear motor car 11 onto the above-described fixed charging rail 3 and are in contact with each other. In FIG. 2, 5 is a plus side cable and 6 is a minus side cable.
[0018]
Here, the arrangement is such that the train of the linear motor car 11 is charged from three fixed charging rails 3 at the front end portion, the central portion, and the rear end portion of the linear motor car 11.
[0019]
Therefore, when the length of the train of the linear motor car is L and the length of the vehicle is n, the distance between the adjacent fixed charging rails 3 can be (1/2) L (for example, 80 m). That is, a sufficient interval between the regular charging rails can be secured.
[0020]
Next, a second embodiment of the present invention will be described.
[0021]
FIG. 3 is a schematic diagram of a charging state of a linear motor car to a linear motor car according to a second embodiment of the present invention, and FIG. 4 is a schematic diagram of a circuit on the linear motor car side. The same parts as those in the first embodiment are denoted by the same reference numerals and their description is omitted.
[0022]
In this embodiment, two fixed charging rails having the same pole are arranged as a set. Here, a positive fixed charging rail of 21A and 21B, a negative fixed charging rail of 21C and 21D, and a positive fixed charging rail of 21E and 21F are sequentially arranged. In FIG. 3, 22 is a plus side cable and 23 is a minus side cable.
[0023]
Therefore, on the ground side, the positive fixed charging rails 21A and 21B, the negative fixed charging rails 21C and 21D, and the positive fixed charging rail 21E are connected to a DC power source (not shown) via the shoe 12. The DC power is supplied to the vehicle.
[0024]
That is, in this second embodiment, when the length of the train is L and the length of the vehicle is n, a set of pairs in which 2n <a <L / 2 is established for every less than L / 2. Within the range of the length a of the length charging rail 3, a length charging rail having a length b <n of the single length charging rail 3 is arranged with a space between one set of length charging rails, A voltage having a different polarity for each L / 2 is applied with the fixed charging rail 3 within the range of the length a of the pair of fixed charging rails 3 having the same polarity as the pair.
[0025]
On the other hand, as shown in FIG. 4, the vehicle is provided with a shoe 12 for collecting L / (n + 1) currents, and a positive cable is connected to each of the pair of diodes 33 and 34 in the forward and reverse directions. 31 and a negative cable 32 are connected to the battery 30.
[0026]
As described above, according to the second embodiment, since the fixed charging rail in which two pieces are set for each pole is connected to the shoe of the vehicle, for example, Even if one of them is in poor contact, it can be charged from the other regular charging rail, and more reliable charging can be performed.
[0027]
In addition, on the vehicle side, since the shoe is disposed regardless of the polarity of the fixed charging rail, accurate charging can be performed even if the stop position of the vehicle is deviated.
[0028]
In addition, in 2nd Example, although the fixed charging rail which two became one set was described, three may be sufficient. That is, it is possible to arrange a plurality of fixed charging rails as a set, but as the number increases, the cost increases and the interval between the fixed charging rails of the set decreases. It is desirable to make one to three pieces into one set.
[0029]
Furthermore, in the conventional case, the fixed charging rail is arranged in parallel in a guideway at a specific point such as a station where the linear motor car stops. For example, the vehicle is not a station but a station and a station. There was a concern that charging would become impossible and the vehicle would not be able to run on its own if it stopped for a long time at a place where the regular charging rail between the two was not placed, According to the present invention, since the fixed charging rail can be arranged with a long interval, it is possible to arrange the fixed charging rail over the entire line, not to mention the arrangement of the fixed charging rail to the station. Thus, the above problem can be solved.
[0030]
In addition, since the linear charging rail for the linear motor car according to the present invention can be connected with a cable at the lower part thereof, the connecting portion is not exposed on the surface of the guideway as in the prior art. Therefore, the connection reliability can be improved without being influenced by the atmosphere. Moreover, it can also have the advantage that aesthetics are excellent.
[0031]
In this way, the fixed charging rails installed in the guideway to charge the battery mounted on the vehicle as a reserve power source for the linear motor car from the ground are arranged in a row at regular intervals in the longitudinal direction of the guideway. By alternately arranging the plus and minus of the power supply, it is possible to prevent short circuit accidents and electric shock accidents and secure the power supply in the event of an abnormality.
[0032]
In the above embodiment, the fixed charging rail is laid in the longitudinal direction of the center portion in the guideway, but is not limited to the center portion, and is laid at a position biased to the right side or the left side. It may be.
[0033]
The present invention is not limited to the above-described embodiments, and various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.
[0034]
【The invention's effect】
As described above in detail, according to the present invention, the following effects can be obtained.
[0035]
(1) Since the positive and negative fixed charging rails are alternately arranged in the longitudinal direction of the guideway, accidents such as short circuit accidents and electric shocks can be prevented.
[0036]
(2) In addition, when charging is possible over the entire guideway, the total length of rails installed in the guideway can be reduced to one-sixth or less, and construction costs can be expected to be reduced. .
[0037]
(3) Since the fixed charging rails are not arranged in parallel as in the prior art, but are arranged at a certain interval in the longitudinal direction of the guideway, in addition to preventing accidents such as short circuits, By laying fixed charging rails on all lines, reliable charging can be performed even when the vehicle is stopped at an arbitrary location.
[Brief description of the drawings]
FIG. 1 is a perspective view of a charging rail for a linear motor car showing a first embodiment of the present invention.
FIG. 2 is a schematic view of a charging state by a charging rail to the linear motor car showing the first embodiment of the present invention.
FIG. 3 is a schematic view of a charging state by a charging rail to a linear motor car showing a second embodiment of the present invention.
FIG. 4 is a schematic diagram of a circuit on the side of a linear motor car showing a second embodiment of the present invention.
FIG. 5 is a perspective view showing a conventional charging rail for a linear motor car.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Linear motor car guide way 2 Linear motor car driving path 3 Fixed charging rail 4 Insulation material 5,31,22 Positive side cable 6,32,23 Negative side cable 11 Linear motor car 12 Shoe 21A, 21B: 21E, 21F Positive charging rail 21C, 21D Negative charging rail 30 Battery 33, 34 Diode

Claims (4)

When the length of the train of the linear motor car is L, the distance between the adjacent fixed charging rails along the longitudinal direction of the fixed charging rail along the longitudinal direction of the guideway is (1/2) L. place in a row, and to connect the positive and negative of each pole on the ground side of the DC power source alternately to the standard length charging rail, taken down to the constant scale charging rail from the maglev, longitudinal of the maglev A charging rail for a linear motor car characterized by contacting a plurality of shoes arranged in a direction. 2. The charging rail for a linear motor car according to claim 1 , wherein a plurality of said fixed charging rails are configured as one set for each of said poles. 3. The linear motor car charging rail according to claim 2 , wherein two fixed charging rails are configured as one set for each of the poles.   2. The charging rail for a linear motor car according to claim 1, wherein the fixed charging rail is laid over the entire guideway.

Images