JP3756731B2 - Magnetic levitation railway propulsion coil device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a propulsion coil device that constitutes an armature of a linear motor in a magnetically levitated railway.
[0002]
[Prior art]
FIG. 6 is a block diagram showing a conventional propulsion coil disclosed in, for example, Japanese Patent Laid-Open No. 3-124253. In FIG. 6, 1 is a concentrated winding coil formed by winding a single cable, and 3 is a transition portion between the coils 1. A binder 9 holds the concentrated winding coil. A plurality of concentrated winding coils 1 wound at a pitch of 3 m (length between ACs) and held by a binder 9 and a transition portion 3 each having a length of 2 m (between BCs) are configured by a single cable. FIG. 7 is a view showing a winding frame and a winding procedure for winding a conventional propulsion coil in advance. FIG. 7 (a) shows a state in which the transition part 3 at the end is wound, 10 is a reel of the drum part, 12 is a body plate, 13 is a slit, and 11 is a collar. In FIG. 7B, when the first concentrated winding coil 1 is wound, slits 13 are provided at a predetermined pitch on the reel 10 of the drum portion of the winding frame. Bound. FIG. 7 (c) shows a state where the above-described winding operation is repeated until three coils 1 and four crossovers 3 are wound.
[0003]
A plurality of concentrated winding coils 1 manufactured in this manner are attached to a mounting form provided on a concrete panel or a concrete beam (typically referred to as a concrete panel hereinafter), and attached to the end of the concrete panel. It connects with the transition part 3 of the coil 1 of an adjacent concrete panel via the connector of the front-end | tip of the transition part 3, and connects the three phases for every feeder section, and comprises the armature of a linear motor.
[0004]
[Problems to be solved by the invention]
The conventional propulsion coil device as described above has the following problems. Multiple coils are wound on a winding drum using a single cable, and the concrete panel is pushed out from the coil at the end in turn, so there is no brim for each coil on the winding frame. Layer winding is easy to collapse and winding is difficult, resulting in one layer winding. Therefore, in order to obtain the necessary number of turns of the propulsion coil, the number of turns in the step direction (direction away from the track side wall) is increased, and the dimension in the depth direction of the coil is increased. There is a problem that the gap G with the superconducting coil which is a magnetic coil is increased, and the efficiency of the LSM (linear synchronous motor) is deteriorated. In FIG. 8, 1 is a coil wound with a cable, 3 is a crossover, 7 is a track side wall, 8 is a magnetically levitated vehicle, 14 is a projection or mounting frame for attaching a coil, and 15 is mounted on the vehicle 8. Superconducting coil.
[0005]
In addition, even if it is devised and wound in a plurality of layers, the winding start portion starts from the innermost circumference, so that the gap is unnecessarily widened for one cable.
The present invention has been made to solve the above-described problems. For a magnetic levitation railway, the necessary number of turns can be wound without widening the gap with the coil on the vehicle and without reducing the efficiency. The object is to obtain a propulsion coil device.
[0006]
[Means for Solving the Problems]
The magnetically levitated railway propulsion coil device according to the present invention is disposed on a track side wall, and a plurality of coils are formed by winding one cable for each phase, and these are connected in series via a crossover. In the magnetic levitation railway propulsion coil device that constitutes the armature of the linear motor, each coil is wound in an even-numbered configuration, and the odd-numbered number counted from the side of the track side is wound from the crossover to the outer peripheral side. It is introduced into the beginning part and wound from the outer periphery side toward the inner periphery side, and the even-numbered stage is wound from the inner periphery side toward the outer periphery side, and is led out from the winding end part on the outer periphery side to the crossover part. is there.
[0007]
The cable forming the coil is a pressure-resistant cable whose main material is a flexible insulating material.
The flexible insulating material is ethylene propylene rubber.
[0008]
Moreover, it is comprised from what wound each phase 2 coils-8 coils by 1 cable | strand on 1 track unit, and wound three phase part to the track | orbit side wall.
[0009]
Furthermore, a panel-like structure made of concrete or a beam having a length of 5.4 m to 21.6 m corresponding to a three-phase unit in which two coils to eight coils of each phase are connected as one group unit. Consists of windings on structures.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 is a front view showing a main part of a propulsion coil device according to Embodiment 1 of the present invention. In the figure, 1a, 1b and 1c are concentrated winding coils in which a cable is wound in a coil shape. The phase, 1b is a V-phase, and 1c is a W-phase coil. 2 is a concrete panel formed with a groove 16 for winding a cable in a coil shape, 17 is a coil mounting form surrounded by the groove 16, and 3a, 3b and 3c are adjacent to each other in the same phase. In the connecting part to the coil, it is continuously connected to the coil 1 with a single cable, and 3a, 3b and 3c are connected to the coils 1a, 1b and 1c, respectively. Reference numerals 4a, 4b, and 4c denote winding start portions of the respective phase coils, and 5a, 5b, and 5c denote winding end portions of the respective phase coils. The transition part 3 of the coil is connected to the transition part of the coil wound around the adjacent concrete panel via the cable connector 6 at the end of the concrete panel, and the respective phases are connected in series. The respective phase coils 1a, 1b, 1c and the connecting portions 3a, 3b, 3c are continuous, and are connected in three phases for each feeding section, and constitute a linear motor armature.
FIG. 2 is a cross-sectional view of the concentrated coil 1b of the propulsion coil device taken along the line II-II in FIG. 1, and the cable is wound in the groove of the concrete panel in two stages × 3 turns. By configuring the windings in an even number of stages, the winding start portion 4b and the winding end portion 5b can be at different height positions (from the raceway side wall), and the transition when winding a plurality of coils in succession is possible. The cable can be smoothly transferred to the portion 3b without forcibly bending the cable. Note that the 2d, 2e, and 2f planes in FIG. 2 are represented by dot-like patterns in FIG.
[0012]
Next, the winding procedure of the coil 1b in the first embodiment is shown in FIGS. Fig. 3 (a) shows before winding starts, (b) shows the first turn of coil 1b, (c) shows the second turn, (d) shows the third turn. Show. As shown in FIGS. 3B to 3D, the first stage counting from the side wall of the track starts winding from the outer peripheral side of the winding and winds toward the inner peripheral side.
FIGS. 3 (e) to 3 (g) show a procedure in which the second stage is wound three turns in sequence. The second stage is wound from the inner circumference side toward the outer circumference side.
[0013]
As described above, the winding is configured in even stages, and the first stage (odd stage) starts to be wound from the outermost turn (outer peripheral side) toward the innermost turn (inner peripheral side) along the outer periphery of the groove. Ascending at the innermost turn, the second step (even numbered step) is wound from the innermost turn to the outermost turn, and if necessary, it is stepped up at the outermost turn and the third step (odd numbered step) ) Is wound from the outermost turn toward the innermost turn, and the number of steps is repeated in the same manner as an even number, thereby bringing the winding start portion 4b and the winding end portion 5b from the track side wall to the outer peripheral side at different height positions. The cable can be smoothly transferred to the transition portion 3b where a plurality of coils are continuously wound without excessive bending, and the winding start and the first stage, and the winding end and the second stage (even stages). ) Can be wound in the same plane, and the coil 1 can be wound without taking extra space.
[0014]
For example, the cable can be made a high voltage cable mainly made of a highly flexible material such as ethylene propylene rubber, so that the minimum bending radius of the coil can be 4.5 to 5 times the cable outer diameter. A large window area can be taken in the space, and the efficiency of LSM can be improved.
[0015]
Embodiment 2. FIG.
FIG. 4 is a cross-sectional view showing a magnetically levitated railway according to Embodiment 2 of the present invention. 1 is a concentrated winding coil, 3 is a crossing portion between coils, 7 is a track side wall, 8 is a magnetically levitated vehicle, and 15 is a vehicle. The mounted superconducting coil is shown. The cable is directly wound around the formwork 17 along the groove 16 of the concrete track side wall 7 in the same manner as in the first embodiment. The number of concentrated winding coils 1 that are continuously wound with a single cable along the track is limited by the diameter of the winding drum that can be handled on the track, but 2 to 8 coils are appropriate. By using two or more coils, the number of cable connectors can be reduced accordingly, and the reason why the number of coil connectors is eight or less is because the diameter of the drum is limited. A group consisting of 2 to 8 coils continuous with one cable is used as one group unit. The U phase, V phase, and W phase corresponding to the three phases of this unit are wound on the raceway side wall 7 at a pitch of 120 degrees. And it connects with the U phase of the next group unit, V phase, and W phase with a cable connector, respectively. Because the cable is flexible when a cable mainly made of a highly flexible material such as ethylene propylene rubber is used, it does not require strict accuracy in the plane accuracy of the track side wall, thus reducing the construction cost of the track side wall. can do.
[0016]
Embodiment 3 FIG.
FIG. 5 is a cross-sectional view showing a magnetically levitated railway according to Embodiment 3 of the present invention, and 18 is a concrete panel wound from a cable in the same manner as in Embodiment 1 so as to form a coil 1. Yes, attached to the track side wall 7. Each phase of 2 to 8 coils is wound as a group of 1 cable and is wound around a concrete panel-like structure with a length of 5.4m to 21.6m corresponding to 3 phases. . And it connects to the U-phase, V-phase, and W-phase of the next concrete panel-like structure with a cable connector. For example, a concrete panel-like structure has 2 coils for each phase x 3 layers = 6 coils, a coil pitch of 0.9 m and a length of 5.4 m, and each phase has 8 coils x 3 layers = 24 coils. The pitch is 0.9m and the length is 21.6m. In the case of FIG. 5, in addition to the effect in the second embodiment, the concrete panel can be installed and wound in another building instead of on the track, so that the equipment for winding can be fixedly installed, The efficiency of winding work can be improved.
In the third embodiment, the concrete panel has been described. However, the same effect can be obtained in the case of a concrete beam structure that is self-supporting with respect to the track.
[0017]
【The invention's effect】
As described above, according to the magnetic levitation propulsion coil system for a railway according to the present invention, are arranged in the track side walls, and winding the one cable for each phase to form a plurality of coils, these cross in the magnetic levitation propulsion coil system for a railway which constitutes the armature of a linear motor in series through the part, each coil is wound in the configuration of even-odd stage counted from the track side wall side, Introduced from the transition part to the winding start part on the outer peripheral side and wound from the outer peripheral side to the inner peripheral side, the even-numbered stage is wound from the inner peripheral side to the outer peripheral side, and the transition part from the winding end part on the outer peripheral side because it is derived, each coil without increasing the gap between the coil on the vehicle, the efficiency can be winding turns required without decreasing the winding start portion and the different height of the winding end portion of the track side wall to each other Can be brought to the outer periphery of the position, multiple Yl can migrate the cable smoothly into the transfer section for continuously.
[0018]
In addition, since the cable forming the coil is a pressure-resistant cable whose main material is a flexible insulating material, the minimum bending radius of the coil can be reduced, and a large window area can be taken in a limited space. Can be improved.
[0019]
Further, since the flexible insulating material is ethylene propylene rubber, the minimum bending radius of the coil can be reduced.
[0020]
In addition, the construction of the track side wall is made cheaper because it is composed of two coils of 8 to 8 coils for each group, each of which consists of a single cable unit and three phases are wound around the track side wall. Can do. If a flexible insulating material is used, strict accuracy is not required for the flatness of the track side wall.
[0021]
Furthermore, a panel-like structure made of concrete or a beam having a length of 5.4 m to 21.6 m corresponding to a three-phase unit in which two coils to eight coils of each phase are connected as one group unit. Since it is composed of what is wound on the structure, the concrete panel can be installed in another building, not on the track, so that the equipment for winding can be installed in a fixed manner. Can improve the efficiency.
[Brief description of the drawings]
FIG. 1 is a front view showing a main part of a propulsion coil device according to Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is a cross-sectional view showing a winding procedure of the propulsion coil in the first embodiment.
FIG. 4 is a sectional view of a magnetically levitated railway according to Embodiment 2 of the present invention.
FIG. 5 is a sectional view of a magnetically levitated railway according to Embodiment 3 of the present invention.
FIG. 6 is a configuration diagram of a conventional propulsion coil.
FIG. 7 is a diagram showing a winding procedure of a conventional propulsion coil.
FIG. 8 is a cross-sectional view showing the positional relationship between a coil of a conventional propulsion coil device and a coil on a vehicle.
[Explanation of symbols]
1, 1a, 1b, 1c Coil 2 Concrete panel 3, 3a, 3b, 3c Transition part 4a, 4b, 4c Winding start part 5a, 5b, 5c Winding end part 6 Cable connector 7 Track side wall 8 Vehicle 9 Binder 14 Mounting mold Frame 15 Super-electric coil 16 Groove 17 Mounting form 18 Concrete panel.

Claims (5)

For magnetic levitation railways, which are placed on the track side wall, winding a single cable for each phase to form a plurality of coils, and these are connected in series via a crossover to form the armature of a linear motor In the propulsion coil device, each coil is wound in an even-numbered stage configuration, and the odd-numbered stage counted from the side wall of the track is introduced from the crossover part to the winding start part on the outer peripheral side and is directed from the outer peripheral side toward the inner peripheral side. The magnetically levitated railway propulsion coil device, wherein the even-numbered stage is wound from the inner circumference side toward the outer circumference side and led out from the winding end portion on the outer circumference side to the crossover portion . 2. The magnetically levitated railway propulsion coil device according to claim 1, wherein the cable forming the coil is a pressure-resistant cable whose main material is a flexible insulating material. The magnetically levitated railway propulsion coil device according to claim 2, wherein the flexible insulating material is ethylene propylene rubber. The structure according to any one of claims 1 to 3, wherein each phase is composed of two coils to eight coils, each of which is formed by winding one cable to form one group unit, and three phases are wound around the track side wall. Magnetic levitation railway propulsion coil device. A group of 2 coils to 8 coils in each phase, which are connected by a single cable, as a group unit, to a concrete panel-like structure or beam-like structure with a length of 5.4 m to 21.6 m corresponding to the three phases. The magnetic levitation type railway propulsion coil device according to any one of claims 1 to 3, wherein the magnetic levitation type propulsion coil device is configured by winding.

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