JPS63194503A - Ground propulsion guide coil wiring cable for magnetic levitation traveling vehicle - Google Patents

Abstract

PURPOSE:To reduce cables and branch connectors and to eliminate the crossing of the cables by connecting the cables for connecting between longitudinal coils and cables for connecting between coils opposed at right and left sides in a T shape or an X shape. CONSTITUTION:Propulsion coils for a magnetic levitation traveling vehicle are mounted longitudinally of propulsion direction at an equal interval, and another propulsion coils 1' opposed thereto at a predetermined interval are mounted at an equal interval. The coils 1, 1' are so arranged that coils for phases U, V and W are sequentially disposed. Connection cables among U-phase coils 1U, 2U, 1U', 2U' are composed by connecting cables 44, 45, 46, 47, 51 by T-shaped branch connectors 49, 50. The construction is simplified as compared with a conventional connection method.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cable for connecting Ichikawa ground propulsion guide coils for magnetically levitated vehicles, and more specifically, a cable for connecting coils in a dormitory installed on the ground of a track for magnetically levitated vehicles. It concerns the power cables connected.

[Prior Art] As shown in FIG. 5, conventional ground propulsion guide coils for magnetically levitated vehicles have, for example, IU, IV, and IW having different phases in the longitudinal direction of propulsion.

2U, 2W=-...-nU, nV, nW ground propulsion coil 1 and I U', IV', IW' ------
--nU'.

Ground propulsion coils 1' of nV' and nW' are installed at equal intervals and facing each other on the left and right sides of the orbit. These coils 1.1' are vertical cables 2 that connect the in-phase coils in the longitudinal direction, and IU→2U...→n
U, IV→2v...→nV.

The coils IW-2W...→nW are connected in the longitudinal direction, and the opposing coils IU', IV' and IW' are also connected in the longitudinal direction by a vertical cable 2'.

Historically, by connecting the left and right coils with the same phase with a horizontal cable 3, if one floating body is displaced to either the left or right, the floating body is guided to restore its position and return to an equilibrium state. (This is used on the Japan National Railways Miyazaki Maglev Line and is called Null Flux.)

In this way, conventional coil connection cables require one vertical cable on each side to connect the longitudinal direction of propulsion, and a horizontal cable for each phase to connect these two left and right cables. T-branch (or Y-branch) connecting portions 4, 4' connecting the vertical cables 2, 2' and the horizontal cable 3 are required on the left and right sides, respectively.

[Problems to be solved by the invention] As described above, according to the conventional wiring method, the propulsion guide coil IU
The cable connecting IU' to 2U' and IU' to 2U' requires two vertical cables, one horizontal cable, and two T-branch connections, which are exactly the same as the V-phase and W-phase. Not only is this complicated and the branch connections are large, the overall cross-sectional size of the rail becomes large, which has the disadvantage of having a large impact on construction costs.

Therefore, the purpose of the present invention is to minimize the amount of cables required to connect the coils, reduce the number of branch connections, and prevent the cables from crossing each other as much as possible, thereby reducing the cost of constructing the track. The present invention provides a cable for connecting a ground propulsion guide coil for a floating vehicle.

[Means and effects for solving the problems] The present invention has the following features:
In the power cables that connect the ground-side propulsion guide coils installed on both sides of the track, the cables that connect the longitudinal coils of propulsion and the cables that connect the coils that are installed on the left and right sides are arranged in a T-shape or an X-shape. It was designed to connect.

[Embodiment] Fig. 1 shows a cable connection of a ground propulsion guide coil for a magnetically levitated vehicle showing a first embodiment of the present invention, in which the propulsion coil 1 is installed at equal intervals in the longitudinal direction with a dimension P. and propulsion coils 1' facing each other at intervals.
are placed at equal intervals.

For convenience of explanation, 2U of U phase-phase.

The coil connections between 2U', 3U, and 3U' will be described. A horizontal cable 31 connecting the secondary sides of the coils 2U and 2U' and a horizontal cable 32 connecting the primary sides of the coils 3U and 3U' are prepared, and the horizontal cables 31 and 32 are connected by the vertical cable 21. . For this reason, branch connections 41 and 42 are used in the middle of the horizontal cables 31 and 32.

It goes without saying that the V-phase and W-phase of other polyphases are also connected in the same way.

The cable actually used to make the connection as described above is constructed as shown in FIG. That is, the horizontal cables 31 and 32 have a length ω necessary to connect the left and right coil spacings, and each cable 31, 32 has cable terminal portions 5, 5 at both ends suitable for connection to the propulsion coil. ’ is set aside. Furthermore, the horizontal cables 31 and 32 are vertical cables 21 having a length g necessary to connect approximately three times the length of the propelling longitudinal coil spacing P (see FIG. 1), and are connected to branch connections 41 and 32, respectively. 42, and the cable is configured to have an overall "I" shape. Here, the branch connection portion 41 is a T provided at a location shifted by a dimension/2:B to one side from the C line at the central portion ω/2 of the length ω of the horizontal cable 31.32.
It is formed by a branch connection, and the dimension B is larger than 1/2 of the length A of this T-branch connection. The other branch connection part 42 is also formed as a T-branch connection part, and is shifted from the C line by the same dimension B' as the above-mentioned dimension B so that it is in the opposite direction to the above-mentioned T branch connection part 41 with respect to the C line. It is provided.

As described above, according to the connection means of this embodiment, the entire cable is connected in an rIJ shape using two horizontal cables with short cable lengths, one vertical cable with long cable length, and two T-branch connections. As a result, the following remarkable effects can be obtained compared to conventional ones.

That is, (1) The amount of cable used is determined by the installation size of the coil L<3.
P, in other words, it is considered that the condition of ω minus g in terms of cable dimensions generally holds true, so the amount of cables required in the present invention is smaller than the conventional one shown in FIG. 5. In this case, the cable length for three phases of the coil is, for example, ω-3m
.

, when converting the length of the cable when Q = 6 m, in the case of the conventional cable (see Fig. 5), 6 threads x 6 m + 3 threads x 3 rlΦ45 m is required, whereas the cable length of the present invention shown in Fig. 1.2 above is required. The length of the first embodiment is 3 rows x 6 m + 6 rows x 3 m + 36 m, which is about 80%.

(2) By providing the branch connection parts shifted in opposite directions by the dimensions B and B', a) there is no overlap between the branch connection parts.

口) There is no crossover between vertical cables.

C) Crossing between the horizontal cable and the vertical cable is unavoidable, but the number of crossing points and their number do not change depending on the coil, resulting in the same pattern.

2) The electric circuit impedances of the left and right coils U and U' of the same phase and of different phases become equivalent, and a balance of magnetic fields is obtained.

e) Cables configured in a single shape have the same structure.

Since the dimensions can be used in common for all coils, it is advantageous in terms of mass production, and there is no variety in on-site installation.

etc. will be effective.

Next, FIG. 3 shows a second embodiment of the present invention, in which propulsion guide coils 1, 1' of the same phase IU, 2U, IU', 2U' are connected by one X branch connection part 43. Vertical and horizontal cables are connected in an X shape with 44.45° and 46.47°. Even if the wires are connected in this way, substantially the same effect as in the first embodiment can be obtained.

Further, FIG. 4 shows a modification of the second embodiment shown in FIG. It consists of 50° and one horizontal cable.

[Effects of the Invention] As described above, according to the present invention, the above-mentioned conventional drawbacks are solved, the amount of cables is minimized, the number of branch connections is minimized, the cables do not cross each other, and the construction cost of the rail is reduced. It is possible to provide a cable for connecting a ground propulsion guide coil for a magnetically levitated vehicle, which can be made inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a cable connection diagram of a ground propulsion guide coil for a magnetically levitated vehicle showing a first embodiment of the present invention; FIG. 2 is a cable connection diagram showing specific cable connections in the first embodiment; FIG. 3 is a cable connection diagram of a ground propulsion guide coil for a magnetically levitated vehicle showing a second embodiment of the present invention, FIG. 4 is a cable connection diagram showing a modification of the second embodiment, and FIG. 1 is a cable connection diagram of a conventional ground propulsion guide coil for a magnetically levitated vehicle. 1'......Propulsion guide coil 21.31.32...Cable 41.42...T branch connection 43
...... Branch connection part〃
Hitachi Cable Co., Ltd.

Claims (3)

[Claims] (1) A power cable that connects the ground-side propulsion guide coils installed on both sides of the track, with two cables connecting the left and right coils installed opposite each other, and the longitudinal direction of propulsion for each cable. A ground propulsion guide coil connection cable for a magnetic levitation vehicle, characterized in that a single cable connecting coils is connected in a T-shape. (2) Two cables connecting left and right opposing coils and one cable connecting longitudinal coils are connected at two T-branch connection points so that the whole forms an "I" shape. , one location of the T-branch connection is located at least 1/1/2 the length of the T-branch connection from the center between the left and right opposing coils.
The magnetic levitation vehicle according to claim 1, wherein the T-branch connection portion is provided with a difference of two or more dimensions, and the other T-branch connection portion is provided with a same dimension offset in the opposite direction from the central portion. Cable for connecting ground propulsion guide coils. (3) A power cable that connects the ground-side propulsion guide coils installed on both sides of the track, and a cable that connects the left and right coils and a cable that connects the longitudinal coils for propulsion. A cable for connecting a ground propulsion guide coil for a magnetically levitated vehicle, characterized in that it is connected by X-branch connections.