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Flexible pantograph slide plate not producing electric arcs

A pantograph and flexible panel technology, which is applied in current collectors, electric vehicles, power collectors, etc., can solve the problems of reduced contact resistance and limited arc reduction effect, and achieves reduced current density, reduced electrical wear, pantograph-catenary smooth effect

Inactive Publication Date: 2016-03-23
上海洲跃生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the contact pressure changes, the number and size of conductive spots also change, and the contact resistance also changes accordingly. However, the relationship between contact resistance and the number of conductive spots is not linear. Within a certain range, only by increasing the contact pressure cannot make the contact resistance significantly Therefore, it is necessary to control the pantograph-catenary static contact pressure within a certain range, but the arc reduction effect is still limited

Method used

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  • Flexible pantograph slide plate not producing electric arcs
  • Flexible pantograph slide plate not producing electric arcs
  • Flexible pantograph slide plate not producing electric arcs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, three-dimensional woven carbon fiber prefabricated flexible skateboard

[0026] (1) Use 12K polyacrylonitrile-based carbon fiber and its high-temperature (2500-3300°C) graphitized graphite fiber and copper fiber to carry out three-dimensional three-dimensional weaving according to a certain ratio, and weave a cuboid whose length, width and height meet the design , the thickness is 30mm;

[0027] (2) Cut the fibers on the bottom surface of the prefabricated body by cutting velvet process, so that the surface is covered with conductive fluff; the length of the velvet fiber is about 3-5mm;

[0028] (3), spray a layer of copper powder on the bottom surface of the prefabricated body;

[0029] (4), derusting, decontaminating, and frosting the substrate;

[0030] (5), evenly coat a layer of high temperature resistant conductive adhesive with uniform thickness on the substrate;

[0031] (6) Lay the prefabricated body on the substrate, compact it, and heat-cure acc...

Embodiment 2

[0033] Embodiment 2, needle-punched graphite felt flexible slide plate

[0034] (1) Using 12K polyacrylonitrile-based carbon fiber and its high-temperature (2500-3300°C) graphitized graphite fiber and stainless steel fiber, the three are used in a certain proportion to make graphite with a length, width and height that meet the design by using a needle-punched felting process Felt, the proportion of stainless steel is not less than 20%, carbon fiber is not less than 20%, and the thickness is 25mm;

[0035] The following steps are the same as in Example 1.

Embodiment 3

[0036] Embodiment 3, laminated graphite felt flexible slide plate

[0037] (1), use 24K polyacrylonitrile-based carbon fiber and its high-temperature (2500-3300°C) graphitized graphite fiber and nickel fiber, the three are woven into cloth according to a certain ratio, and then cut into multiple pieces of length and width that meet the requirements Graphite cloth. The proportion of carbon fiber is not less than 25%, nickel fiber is not less than 35%, and the thickness is 35mm;

[0038] (2) Each piece of graphite fiber cloth is brushed with a brushing process, so that the surface is covered with a layer of 1-5mm conductive fluff;

[0039] (3) Spray a layer of copper powder on each suede surface, then apply conductive glue, stick multiple layers of graphite fiber cloth together and compact it into a felt as a whole, with a thickness of 35mm;

[0040] The following steps are the same as in Example 1.

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PUM

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Abstract

The invention discloses a flexible pantograph slide plate not producing electric arcs. The flexible pantograph slide plate is formed by weaving conductive graphite fiber, carbon fiber and metal fiber or made through the special felt manufacturing technology, and the flexible pantograph slide plate is bonded to a metal substrate through conductive glue and pressed through a metal pressing piece. When the flexible slide plate makes contact with a contact net, a flexible panel is extruded to form a V-shaped concave part, the arc bottom face and the side face of a contact wire both make contact with the surface of the panel, wire deviating caused by impacts during split phase point and unsmooth wire segment passing cannot happen, wire deviating caused by vibration of a pantograph and overhead contact wire system cannot happen either, and accordingly generation of the electric arcs is basically eliminated. In addition, the contact pressure can be reduced through the flexible slide plate, the impact on the contact net during pantograph sliding is reduced, the vibration performance of the pantograph and overhead contact wire system is improved, and the using safety and reliability of a pantograph are greatly improved. The flexible slide plate is suitable for undergrounds, light rails and other low-speed electric locomotives and can better meet the requirement of high-speed trains with the speed more than 350 kilometers and even superspeed trains for large-power current taking and power utilization.

Description

technical field [0001] The invention belongs to the technical field of pantograph slides for electric locomotives, and in particular relates to a flexible pantograph slide that does not generate electric arcs. Background technique [0002] The pantograph is an electrical device for an electric traction locomotive to obtain electrical energy from the catenary. It is a articulated mechanical component that is installed on the roof of the locomotive or motor car through insulators. When the pantograph is raised, its sliding plate is in direct contact with the catenary wire, receives current from the catenary wire, and transmits it to the interior of the locomotive through the roof busbar for traction locomotives and other electrical equipment. The skateboard is one of the most important parts of the pantograph. The skateboard and the catenary wire constitute a pair of special friction pairs that are mechanically and electrically coupled. It has the following characteristics: hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L5/20
CPCB60L5/205
Inventor 李春洲李珂
Owner 上海洲跃生物科技有限公司