JPH045384Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sectional insulating device for a feeder system used when power is supplied to an electric vehicle from a plurality of feeder systems.

Conventionally, when power is supplied from a plurality of power systems, as shown in FIG. The insulator 6 for smoothly guiding the electrons 5 is provided longer than the current collector 7 consisting of one or more current collectors 5 of the electric vehicle 4 to provide sectional insulation of the power system. In addition, when it is necessary to perform sectional insulation near the expansion joints of the overhead contact line, as shown in Figure 2, the expansion joints 8
To avoid this, an insulator 6 of a length necessary for the current collector 7 of the electric vehicle 4 to pass is provided on the electric train track.

However, if the insulator 6 is provided over the entire sectional insulation section in this way, the length of the insulator 6 will be considerable, so the length of the insulator 6 that will slide on the current collector 7 of the electric vehicle 4 will be long, and the insulation The wear of object 6 becomes severe. In addition, since the insulator 6 is generally used that is more likely to wear than the rigid trolley 1, the sliding surface of the insulator 6 is more worn than the sliding surface of the rigid trolley 1, and there is a gap between the two. Creates a step.
This causes a problem of causing mechanical damage to the current collector 7, and also causes a temporary disconnection between the current collector 7 and the rigid trolley 1 at the location where the step occurs, causing sparks. , they generate electrical noise, which has the disadvantage of becoming a source of noise not only for the transportation system itself but also for surrounding residents.
Further, when sparks are generated, the sliding surfaces of both the current collector 7 and the rigid trolley 1 are melted and welded by the sparks. When the rigid trolley 1 is slid on the current collector 7 which has undergone this melting and welding and lacks uniformity, sparks are generated and the melting and welding are repeated, and the sliding surfaces of the rigid trolley 1 and the insulator 6 are worn out. The disadvantage is that it doubles.

This invention was made in view of the above circumstances,
The purpose is to provide a sectional insulating device for a power supply system that is less likely to cause a difference in level between a rigid trolley and an insulator, and does not generate sparks, and also allows easy replacement of insulated rails. Hereinafter, the present invention will be explained in detail with reference to the drawings.

3 and 4 show an embodiment of the present invention, in which reference numeral 11 denotes an electric vehicle, and this electric vehicle 11 runs on a track 12 along a guide wall 13. A current collector 15 made of one or more (three in the embodiment) current collectors 14 is provided on one side of the electric vehicle 11. Further, this current collector 15 is in contact with an overhead contact line 16 provided on the guide wall 13, and this overhead contact line 16 is provided with a sectioned insulation section L that is longer than the current collector 15 of the electric vehicle 11. Insulating rails 17, which are longer than the current collector 14, are provided at both ends of this segmented insulating section L, and between the insulating rails 17, a trolley having the same material and shape as a rigid trolley 19, which will be described later, or A contact body 18 made of a suitably shaped metal material and having equivalent wear resistance is provided. Further, power is not supplied to the segmented insulated section L of the overhead contact line 16, and sections A and B, which are made up of rigid trolleys 19 with an I-shaped cross section, are each supplied with power from separate feeder systems. ing. As shown in FIG. 4, the contact body 18 is an expansion joint 20, 20 that connects the rigid trolleys 19, 19.

Next, the operation of the sectional insulating device for a feeder system according to the present invention will be explained.

Assuming that the electric vehicle 11 is traveling from right to left in FIG. 3, while the electric vehicle 11 is moving from section A to section B, the electric vehicle 11 enters the sectional insulation section L. Since this sectional insulation section L is provided longer than the current collector 15 of the electric vehicle 11, the electric vehicle 11 runs in this sectional insulation section L without being supplied with electric power from either section A or B, and runs on inertia.
The collector 14 is guided along the insulating rail 17 and the contact body 18. In addition, since the length of the insulating rail 17 is slightly larger than that of the collector 14 and sufficiently smaller than the section insulation section L, the contact time between the insulating rail 17 and the collector 14 is short, and the length of the insulating rail The wear of No. 17 does not progress much. Therefore contact body 18 or rigid trolley 19
It is difficult to form a level difference between the current collector 14 and the insulating rail 17, and the current collector 14 can smoothly pass through the sectional insulation section L without generating sparks.

If the insulating rail 17 is worn out and needs to be replaced with a new one, the expansion joints 20, 20 that make up the contact body 18 are separated, and
When assembling, the insulating rail 17 is attached to the rigid trolley 19 and then the expansion joints 20, 20 are connected.

Although this embodiment has been described using a method in which the overhead contact line 16 is attached to the guide wall 13 and the current is collected by the current collector 15 attached to the side of the electric vehicle 11, the overhead contact line may be of an overhead wire type. good. Furthermore, the electric vehicle 11 may be one that runs on iron wheels on iron rails, or one that runs on rubber tires.

As explained above, the sectional insulating device for a feed power system of the present invention is provided between the rigid trolley of one feed power system that supplies electric power to an electric vehicle and the rigid trolley of another feed power system adjacent thereto. In a sectional insulating device for a feeder system, which is provided with a sectional insulating section for guiding a current collector equipped with at least one current collector of an electric vehicle, the sectional insulating section is maintained in a non-energized state and the above-mentioned sectional insulating section is It consists of a contact body with an expansion joint structure made of the same material as the rigid trolley, and a pair of insulating rails provided between both ends of the contact body and each of the rigid trolleys, and at least from the current collector. Since the rails are long, wear and damage to the insulating rails can be kept to a minimum, and there is no need to frequently replace the insulating rails. Moreover, the insulated rail can be replaced extremely easily by separating the expansion joint, and even if there is a dimensional error in the insulated rail, it can be absorbed by the expansion joint, so replacing the insulated rail is extremely easy. In addition, there is no need to be careful about electrical conduction between expansion joints, unlike the conventional one, for example, the one in Figure 2, and it is different in shape or structure from the main body of a rigid trolley. The contact body (expansion joint) itself can be easily replaced, which also has the advantage of making maintenance and inspection work easier. Even when replacement is required, it is easy to handle and maintenance is extremely easy. In addition, there is little difference in level between the insulating rail and the current collector, and the problem of sparks occurring when the current collector moves does not occur. moreover,
Since the insulation can be made double-layered, safety is increased, sectional insulation can be easily constructed for any long section, and the mechanical strength of the entire tramline is improved, which has excellent effects. .

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing a conventional sectional insulator;
FIG. 2 is a front view showing a conventional sectional insulating device in the vicinity of an expansion joint, FIG. 3 is a schematic plan view showing an embodiment of the present invention, and FIG. 4 is a front view of the vicinity of the expansion joint of the present invention. 11...Electric vehicle, 14...Electronic collector, 15...
Current collector, 17... Insulated rail, 18... Contact body, 19... Rigid body trolley, L... Sectional insulation section.

Claims (1)

[Scope of utility model registration request] A current collector device including at least one current collector of the electric vehicle is guided between a rigid trolley of one feeder system that supplies electric power to the electric vehicle and a rigid trolley of another feeder system adjacent thereto. In a sectional insulating device for a power supply system, the sectional insulating section is provided with a contact body of an expansion joint structure that is maintained in a non-power-supplied state and made of the same material as the rigid trolley, and this contact body. and a pair of insulating rails provided between both ends of the trolley and each of the rigid trolleys, and being longer than at least the current collector.