JP2000118271A - Charge rail for linear motor car - Google Patents

Abstract

(57) [Summary] [PROBLEMS] By arranging fixed-length charging rails installed in a guideway in a line at regular intervals in the longitudinal direction of the guideway, and by alternately placing plus and minus of a DC power supply, To provide a charging rail for a linear motor car that can prevent a short circuit accident and an electric shock accident. SOLUTION: In a charging rail for a linear motor car, fixed-length charging rails 3 are arranged in a line at predetermined intervals along a longitudinal direction in a guideway 1, and the fixed-length charging rail 3 is provided.
Connect the plus and minus of the DC power supply on the ground side alternately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging rail for supplying electric power to electric equipment mounted on a linear motor car (maglev train).

[0002]

2. Description of the Related Art Heretofore, there have been the following charging rails for supplying electric power to electric equipment mounted on a linear motor car. FIG. 5 is a perspective view showing such a conventional charging rail for a linear motor car. In this figure, 101 is a guideway, 102 is its running path, 1
03 is an insulating stand, 104 is two fixed-length charging rails arranged in parallel in a guideway at a specific point such as a station where a linear motor car stops, and 105 is power supply to the two fixed-length charging rails 104. Is a connection portion between the cable 105 and the fixed-size charging rail 104.

As described above, conventionally, two fixed-size 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 vehicle (not shown) facing the charging rails 104 is provided. Is the fixed-size charging rail 10 for each shoe
4 and then connected to a DC power supply (not shown) having one of the fixed-size charging rails 104 as a positive pole and the other as a negative pole via a cable 105 to supply DC power to the vehicle. I had to charge the battery of the linear motor car.

[0004]

However, in the above-mentioned conventional charging rail for a linear motor car, since the two fixed-size charging rails 104 are arranged in parallel, the conductors are arranged in parallel. There is a problem that the charged charging rails 104 fall down or fall down, or a short circuit occurs between the two charging rails due to insulation deterioration between the charged charging rails 104.

Further, since the distance between the charging rails arranged in parallel is a short distance (for example, 60 cm), there is a problem that an electric shock accident is likely to occur between the positive and negative power supplies. In order to prevent such an electric shock accident, there has been proposed a configuration in which a cover is provided on the charging rail except during charging, and the cover is removed during charging (for example,
JP-A-51-35011, JP-A-62-1819
No. 29, JP-A-62-181930)
However, there has been a problem that the structure is complicated and the inspection and maintenance are troublesome due to the accompanying wear.

The present invention has been made to solve the above-mentioned problems, and arranges fixed-length charging rails installed in a guideway in a line at regular intervals in a longitudinal direction in the guideway, and alternately switches between positive and negative DC power supplies. 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 by being arranged.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides: [1] In a charging rail for a linear motor car, the charging rails are arranged in a line at predetermined intervals along a longitudinal direction in a guideway, and And a fixed-size charging rail for alternately connecting positive and negative DC power supplies on the side.

[2] In the charging rail for a linear motor car according to the above [1], the predetermined interval between the fixed-size charging rails is at least １ ／ of the train length. [3] The charging rail for a linear motor car according to the above [1], wherein a plurality of the fixed-size charging rails are provided for each pole.
It is configured as a set. [4] In the charging rail for a linear motor car according to the above [3], two fixed-length charging rails are configured as one set for each pole.

[5] In the charging rail for a linear motor car according to the above [1], the fixed-length charging rail is laid over the entire line of the guideway.

[0010]

Embodiments of the present invention will be described below with reference to 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 diagram of a charging state of the linear motor car by a fixed-size charging rail.

In FIG. 1, reference numeral 1 denotes a guideway of a linear motor car, 2 denotes a traveling path of the linear motor car, and 3 denotes a guideway 1 which is arranged in a line in a central portion of the guideway 1 at regular intervals in a longitudinal direction. The fixed-length charging rails 4 and 4 are alternately arranged and are insulating materials provided on the roadbed of the fixed-length charging rail. 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-mentioned fixed-size charging rail 3 so as to make contact therewith. In FIG. 2, 5 is a cable on the plus side, and 6 is a cable on the minus side.

Here, the train of the linear motor car 11 is arranged to be charged from the three fixed-size charging rails 3. Therefore, assuming that the length of the train of the linear motor car is L and the length of the vehicle is n, the distance between adjacent fixed-size charging rails 3 is (1/2) L (for example, 80
m). That is, it is possible to secure a sufficient interval between the fixed-size charging rails.

Next, a second embodiment of the present invention will be described. FIG. 3 is a schematic diagram showing a charging state of a linear motor car according to a second embodiment of the present invention using a fixed-size charging rail, and FIG. 4 is a schematic diagram of a circuit on the linear motor car side. Note that the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, two fixed-length charging rails having the same pole are arranged as a set. Here, 21A and 21B plus fixed-size charging rail, 21
C and 21D negative fixed charging rail, 21E and 21
F-size fixed-length charging rails are arranged sequentially. In FIG. 3, reference numeral 22 denotes a positive cable, and reference numeral 23 denotes a negative cable.

Therefore, on the ground side, the positive fixed-length charging rails 21A and 21B and the negative fixed-length charging rail 21
C and 21D, plus fixed charging rail 21E is shoe 1
The power supply 2 is connected to a DC power supply (not shown) to supply DC power to the vehicle. That is, in the second embodiment, when the length of the train is L and the length of the vehicle is n, a set of pairs of constants satisfying 2n <a <L / 2 for every less than L / 2. Within a range of the length a of the length charging rail 3, a length charging rail having a length b <n of a single length charging rail 3 is arranged with an interval between a set of length charging rails, A voltage having a different polarity for each L / 2 is applied to the pair of fixed-size charging rails 3 within the range of the length a of the pair of fixed-size charging rails 3 having the same polarity.

On the other hand, as shown in FIG.
A shoe 12 for (n + 1) current collection is provided, and a plus-side cable 31 and a minus-side cable 32 are respectively connected through a pair of forward and reverse diodes 33 and 34.
Thereby, it is connected to the battery 30. As described above, according to the second embodiment, the fixed-size charging rail, which is a set of two for each pole, is connected to the shoe of the vehicle. Even if one of them has poor contact, it is possible to charge from the other fixed-size charging rail, and more reliable charging can be performed.

Further, since the shoes are arranged on the vehicle side irrespective of the polarity of the fixed-size charging rail, accurate charging can be performed even if the stop position of the vehicle is shifted. In addition, in the second embodiment, the fixed-length charging rail in which two are set as one set has been described, but three may be used. In other words, a plurality of fixed-length charging rails can be arranged as one set, but as the number increases, the cost increases and the interval between the fixed-length charging rails in the set becomes shorter. It is desirable to make one to three pieces.

Further, in the conventional case, the fixed-size charging rail is arranged in parallel in a guideway at a specific point such as a station where the linear motor car stops, and for example, the vehicle is not a station but a vehicle. If the vehicle stops for a long time at a place where there is no fixed-size charging rail between stations, charging may not be possible and the vehicle may not be able to travel on its own. However, according to the present invention, since the fixed-size charging rails can be arranged at long intervals, it is needless to say that the fixed-size charging rails are arranged at the station, and the fixed-size charging rails are arranged over the entire line. And the above problem can be solved.

Further, since a cable can be connected to each lower portion of the fixed charging rail for a linear motor car of the present invention, the connection portion is not exposed to the surface of the guideway as in the related art. So that you can
The connection reliability can be improved without being affected by the atmosphere. In addition, there is an advantage that the appearance is excellent.

As described above, the fixed charging rails installed in the guideway for charging the battery mounted on the vehicle from the ground as a backup power supply for the linear motor car are arranged in a row at regular intervals in the longitudinal direction of the guideway. And by alternately arranging the plus and minus of the power supply, it is possible to prevent a short circuit accident or an electric shock accident and to secure the power supply in the event of an abnormality.

In the above embodiment, the fixed-size charging rail is laid in the longitudinal direction of the center of the guideway. However, the charging rail is not limited to the center. It may be laid. Further, the present invention is not limited to the above-described embodiments, and various modifications are possible based on the gist of the present invention, and these are not excluded from the scope of the present invention.

[0022]

As described above, according to the present invention, the following effects can be obtained. (1) Since the positive and negative fixed-length charging rails are alternately arranged in the longitudinal direction of the guideway, accidents such as a short circuit accident and an electric shock can be prevented.

(2) When charging is possible over the entire guideway, the total length of rails laid in the guideway can be reduced to 1/6 or less, thereby reducing construction costs. Can be expected. (3) Unlike the prior art, the fixed-size charging rails are not arranged in parallel, but are arranged at regular intervals in the longitudinal direction of the guideway, so that accidents such as short-circuits can be prevented, and the guideway can be prevented. By laying the fixed-length charging rail 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 according to a first embodiment of the present invention.

FIG. 2 is a schematic view of a state in which a linear motor car is charged by a charging rail according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a state of charging a linear motor car by a charging rail according to a second embodiment of the present invention.

FIG. 4 is a schematic diagram of a circuit on a linear motor car side 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 Guideway of linear motor car 2 Running path of linear motor car 3 Charging rail of fixed length 4 Insulating material 5,31,22 Positive cable 6,32,23 Negative 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 (5)

[Claims] 1. A linear motor which is arranged in a row at a predetermined interval along a longitudinal direction in a guideway and has a fixed-length charging rail for alternately connecting plus and minus of a DC power source on the ground side. Car charging rail. 2. The charging rail for a linear motor car according to claim 1, wherein a predetermined interval between the fixed-length charging rails is at least half of a train length. 3. The charging rail for a linear motor car according to claim 1, wherein a plurality of the fixed-size charging rails are provided for each pole. 4. The charging rail for a linear motor car according to claim 3, wherein two fixed-length charging rails are provided for each pole as one set. 5. The charging rail for a linear motor car according to claim 1, wherein the fixed-length charging rail is laid over the entire guideway.