CN212724775U - Cross-over connection cable of railway vehicle - Google Patents
Cross-over connection cable of railway vehicle Download PDFInfo
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- CN212724775U CN212724775U CN202020979105.7U CN202020979105U CN212724775U CN 212724775 U CN212724775 U CN 212724775U CN 202020979105 U CN202020979105 U CN 202020979105U CN 212724775 U CN212724775 U CN 212724775U
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Abstract
The utility model provides a rail vehicle's jumper cable, jumper cable cross section is restrictive coating, isolation layer, signal line layer and filling layer from outer to interior in proper order. The signal line layer comprises a plurality of signal lines which are twisted in the same direction and used for transmitting signals between two or more compartments of a cross-over connection, the sheath layer is located on the outermost layer of the cross-over connection cable and made of cross-linked polyolefin elastomer materials, and the cable has the characteristics of impact resistance and bending resistance and is used for protecting the signal lines in the signal line layer and preventing the signal lines from being damaged by mechanical impact or bent due to other external forces. Therefore, since the jumper cable does not comprise the power line, the signal line cannot be interfered by the power line; because the signal line layer is wrapped by the sheath layer with impact resistance and strong bending resistance, the jumper cable also has strong bending resistance.
Description
Technical Field
The utility model discloses the application relates to cable technical field, especially relates to a rail vehicle's jumper cable.
Background
In conventional rail vehicles such as trains, jumper cables may be provided between different cars in order to transmit control signals and supply power. A conventional jumper cable includes a power line for power transmission and a signal line for signal transmission. Integrating the signal lines and the power lines in the same cable can reduce the number of wire harnesses between cars. And the diameter of the cross section of the integrated multiple wire harnesses is increased, so that the integrated multiple wire harnesses has certain bending resistance.
However, the conventional jumper cable is not suitable for a new type of railway vehicle using electric energy as a power source due to electromagnetic interference between the power line and the signal line. Meanwhile, the conventional jumper cable only comprises a signal line and a power line, so that the conventional jumper cable has limited bending resistance and cannot adapt to complex working conditions.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a cross-over connection cable of rail vehicle aims at providing the cross-over connection cable that includes signal line and bending resistance ability reinforce with power line and signal line separation.
A jumper cable for a railway vehicle comprises a sheath layer, an isolation layer, a signal line layer and a filling layer;
the sheath layer is positioned on the outermost layer of the jumper cable, and a cross-linked polyolefin elastomer material is used for protecting the signal wire layer;
the isolating layer is used for isolating the sheath layer from the signal line layer;
the signal line layer is positioned between the isolation layer and the filling layer and comprises a plurality of signal lines, and the signal lines twisted in the same direction are used for transmitting signals between carriages;
the filling layer is used for supporting the signal line layer.
Optionally, the filling layer is located in the center of the cross section of the jumper cable, and is made of an elastic material.
Optionally, the signal line layer comprises a plurality of signal lines twisted in the same direction.
Optionally, the signal line layers include an outer signal line layer, a middle signal line layer, and an inner signal line layer.
Optionally, the signal line includes a conductor layer and an insulating layer.
Optionally, the conductor layer is tin-plated soft copper stranded wires, and the tin-plated soft copper stranded wires conform to the international electrotechnical commission IEC60228 standard.
Optionally, the insulating layer is made of a halogen-free resin material.
Optionally, the isolation layer is located between the signal line layer and the jacket layer.
Optionally, the isolation layer is made of woven cloth adhesive tape.
Optionally, the sheath layer is treated by a continuous vulcanization irradiation crosslinking process.
The utility model provides a rail vehicle's jumper cable, jumper cable cross section is restrictive coating, isolation layer, signal line layer and filling layer from outer to interior in proper order. The signal line layer comprises a plurality of signal lines which are twisted in the same direction and used for transmitting signals between two or more compartments of a cross-over connection, the sheath layer is located on the outermost layer of the cross-over connection cable and made of cross-linked polyolefin elastomer materials, and the cable has the characteristics of impact resistance and bending resistance and is used for protecting the signal lines in the signal line layer and preventing the signal lines from being damaged by mechanical impact or bent due to other external forces. Therefore, since the jumper cable does not comprise the power line, the signal line cannot be interfered by the power line; because the signal line layer is wrapped by the sheath layer with impact resistance and strong bending resistance, the jumper cable also has strong bending resistance.
Drawings
To illustrate the technical solutions in the present embodiment or the prior art more clearly, the drawings needed to be used in the description of the embodiment or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a jumper cable of a rail vehicle provided by an embodiment of the present application;
fig. 2 is a schematic structural diagram of a jumper cable of a rail vehicle according to an embodiment of the present application.
Detailed Description
In traditional rail vehicle, power line and signal line are integrated in same jumper cable, not only can reduce the quantity of jumper cable between the carriage, moreover because the cross section diameter of power line is great, has certain bending resistance ability, can improve the bending resistance ability of signal line with signal line and power line integration in same jumper cable, prevent that the signal line from because of the relative displacement rupture of carriage.
However, in a new rail vehicle such as a high-speed rail vehicle, the power source of the vehicle is electric energy, and the other carriages except the vehicle head may have a power system or a storage battery. This results in a large current in the power line and a fast rate of change. As the current increases, the magnetic field around the power line will also increase accordingly. Therefore, the power line can influence the signals transmitted in the signal line, so that the carriage cannot receive correct signals, and certain potential safety hazards exist. In addition, the conventional jumper cable cannot meet the Electromagnetic Compatibility (EMC) requirement which is becoming more and more strict.
In view of this, the utility model provides a cross-over connection cable of rail vehicle for signal line provides independent and have the cross-over connection cable of stronger anti bending capacity. In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the specific drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a cross-sectional view of a jumper cable of a rail vehicle according to an embodiment of the present application.
The utility model provides a railway vehicle's jumper cable can divide into four layers, is filling layer 1, signal line layer 2, restrictive coating 4 and isolation layer 3 respectively from jumper cable's cross section center to jumper cable's outermost. Wherein, restrictive coating 4 is located the outside of jumper cable for inside isolation layer 3, signal line layer 2 and filling layer 1 of protection can not receive external influence. The sheath layer 4 may be made of a waterproof and insulating cross-linked polyolefin elastomer material. Therefore, when the jumper cable is subjected to external mechanical impact, the sheath layer 4 can play a role in buffering, and the signal wire layer 3 is prevented from being damaged; when relative displacement occurs in two carriages connected by a jumper cable, the sheath layer 4 can prevent the signal line layer 3 from being broken due to overlarge bending angle.
The signal line layer 2 is located between the isolation layer 4 and the filling layer 1, and comprises a plurality of signal lines twisted in the same direction, and each signal line can be used for transmitting signals between the carriages. In order to improve the bending resistance of the core wire, a plurality of signal wires may be twisted using a smaller twist pitch.
The filling layer 1 is located at the innermost layer of the jumper cable, the cross section of the filling layer can be circular, and the circle center of the filling layer coincides with the circle center of the cross section of the jumper cable, and is used for supporting a plurality of signal lines in the signal line layer 2. The filling layer 1 may be made of flexible material such as cotton, and when the jumper cable is bent, the signal line in the signal layer 2 may be sunk into the filling layer 1, so as to further prevent the signal line in the signal line layer 2 from being broken.
The utility model provides a rail vehicle's jumper cable, jumper cable cross section is restrictive coating, isolation layer, signal line layer and filling layer from outer to interior in proper order. The signal line layer comprises a plurality of signal lines which are twisted in the same direction and used for transmitting signals between two or more compartments of a cross-over connection, the sheath layer is located on the outermost layer of the cross-over connection cable and made of cross-linked polyolefin elastomer materials, and the cable has the characteristics of impact resistance and bending resistance and is used for protecting the signal lines in the signal line layer and preventing the signal lines from being damaged by mechanical impact or bent due to other external forces. Therefore, since the jumper cable does not comprise the power line, the signal line cannot be interfered by the power line; because the signal line layer is wrapped by the sheath layer with impact resistance and strong bending resistance, the jumper cable also has strong bending resistance.
In the embodiment of the present application, the signal line layer 2 may include multiple signal lines, for example, as shown in fig. 1, the signal line layer 2 may include an outer signal line layer, a middle signal line layer, and an inner signal line layer. In one possible implementation, the outer signal line layer may include 24 signal lines, the middle signal line layer may include 20 signal lines, and the inner signal line layer may include 14 signal lines. As such, multiple signal lines may be included in a jumper cable to transmit signals to multiple cars or multiple devices.
In the embodiment of the present application, each of the plurality of signal lines included in the signal layer 2 may include a conductor layer and an insulating layer, for example, as shown in fig. 2. The conductor layer can be a five-type conductor conforming to IEC60228 standard, and can be made of tinned soft copper stranded wire, for example. The insulating layer may be made of a halogen-free resin material. The halogen-free resin material has the characteristics of heat resistance, high hardness and insulation, and can prevent the mutual influence of transmission signals in a plurality of signal wires in the signal layer 2.
In the embodiment of the present application, the requirement of the jumper cable for the bending resistance is high in consideration of the fact that the working environment of the railway vehicle may be complicated. For this reason, the jacket layer 4 may be treated by a radiation crosslinking process of continuous vulcanization, thereby improving flame retardancy, heat resistance and bending resistance of the jacket layer 4.
The above is to the utility model provides a railway vehicle's jumper cable has carried out detailed introduction, to the general technical personnel in this field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and application scope, to sum up, this description content should not be understood as right the utility model discloses a restriction.
Claims (10)
1. The jumper cable of the railway vehicle is characterized by comprising a sheath layer, an isolation layer, a signal line layer and a filling layer;
the sheath layer is positioned on the outermost layer of the jumper cable, and a cross-linked polyolefin elastomer material is used for protecting the signal wire layer;
the isolating layer is used for isolating the sheath layer from the signal line layer;
the signal line layer is positioned between the isolation layer and the filling layer and comprises a plurality of signal lines, and the signal lines are twisted in the same direction and used for transmitting signals between carriages;
the filling layer is used for supporting the signal line layer.
2. The jumper cable of claim 1, wherein the filler layer is centrally located in the cross-section of the jumper cable and is made of an elastomeric material.
3. The jumper cable of claim 1, wherein the signal line layers include a plurality of signal lines twisted in the same direction.
4. The jumper cable of claim 1, wherein the signal line layers include an outer signal line layer, a middle signal line layer, and an inner signal line layer.
5. The jumper cable of claim 1, wherein the signal line includes a conductor layer and an insulating layer.
6. The jumper cable of claim 5, wherein the conductor layer is tin-plated soft copper stranded wire, the tin-plated soft copper stranded wire conforming to the International electrotechnical Commission IEC60228 standard.
7. The jumper cable of claim 5, wherein the insulating layer is formed of a halogen-free resin material.
8. The jumper cable of claim 1, wherein the insulation layer is located between the signal line layer and the jacket layer.
9. The jumper cable of claim 1, wherein the insulation layer is a woven cloth tape.
10. The jumper cable of claim 1, wherein the jacket layer is treated with a continuous vulcanization, radiation crosslinking process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979105.7U CN212724775U (en) | 2020-06-01 | 2020-06-01 | Cross-over connection cable of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979105.7U CN212724775U (en) | 2020-06-01 | 2020-06-01 | Cross-over connection cable of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212724775U true CN212724775U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020979105.7U Active CN212724775U (en) | 2020-06-01 | 2020-06-01 | Cross-over connection cable of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212724775U (en) |
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2020
- 2020-06-01 CN CN202020979105.7U patent/CN212724775U/en active Active
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