Power and control combined cable for rail transit vehicle

A technology for rail transit vehicles and composite cables, applied in the direction of insulated cables, bendable cables, cables, etc., can solve the problem of not considering the stress, strain and bending resistance of wire bundle stranding and regular stranding, and not giving power and control. Wire core material and twisting method, control wire core damage, etc., to achieve good bending performance, improve flatness and smoothness, and prevent short circuits

CN102332330AActive Publication Date: 2012-01-25ZHONGGUAN CABLE CO LTD
10 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-01-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides a power and control combined cable for a rail transit vehicle, which comprises a combined cable core, wherein the combined cable is formed by twisting three power liens and a control signal line which are in mutual contact, each power line respectively comprises a cable core conductor, an inner liner and an insulation layer from inside to outside, and the control signal line comprises a cable core conductor, an isolation layer, a shielding layer and a lapped layer from inside to outside; and a filling layer is arranged on a twisting structure of the combined cable core,and the lapped layer and an outer jacket cover the periphery of the filling layer. The cable core conductor of each power line is formed by adopting a tinned copper wire or a bunch formed by the tinned copper wire in a leftward regular twisting manner, and the cable core conductor of the control signal line is formed by adopting a tinned copper wire with an insulation layer or a bunch in a leftward regular twisting manner. The invention realizes simultaneous operation of power transmission and control signal transmission which are in the same wrapping space and are not mutually interfered, sothat the laying space of the cable is greatly reduced, and the cable has the advantages of low loss, flexibility, bending resistance, oil resistance, fire prevention, environmental friendliness and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to cables, in particular to a dynamic control combination cable for rail transit vehicles. Background technique

[0002] At present, my country's urban rail transit has entered a period of rapid development. As one of the supporting electrical components for rail transit vehicles to transmit energy and transmit information, cables for rail transit vehicles play an important role in the entire rail transit system.

[0003] Rail transit vehicles have high requirements on the laying space of wires and cables, and require a small laying space. In the prior art, in order to reduce the wiring space of rail transit vehicles, locomotive suppliers lay multiple power cables and several control cables at the same time in a very small space. In a narrow area or space, the signals interfere with each other, leaving a safety hazard for rail transit; secondly, the rapid running of the train causes friction between the power cable and the control...

Examples

Embodiment Construction

[0024] See figure 1 , the combined cable core of the present invention is formed by twisting three power lines and one control signal line in contact with each other. The signal line includes a cable core conductor 4, an insulating layer 5, an isolation layer 6, a shielding layer 7, and a wrapping layer 8 from the inside to the outside;

[0025] A filling layer 9 is arranged on the stranded structure of the combined cable core, and a cladding layer 10 and an outer sheath 11 are wrapped around the periphery of the filling layer 9 .

[0026] The cable core conductor 1 of the above-mentioned power line is composed of tinned copper wires, which are twisted according to the left direction; Twisted formation, or the cable core conductor 4 adopts the bundled wire of tinned copper wire with insulating layer 5 according to left-hand normal twisted formation.

[0027] Alternatively, the outermost two layers of the cable core conductor 1 of the above-mentioned power line are normally s...