CN113035412A

CN113035412A - Transponder data transmission cable

Info

Publication number: CN113035412A
Application number: CN202110165294.3A
Authority: CN
Inventors: 崔志; 王逸; 王海岭; 谢太阶; 王良雨; 朱家生; 巫涛
Original assignee: Anhui Tiexin Photoelectric Technology Co ltd
Current assignee: Anhui Tiexin Photoelectric Technology Co ltd
Priority date: 2021-02-06
Filing date: 2021-02-06
Publication date: 2021-06-25
Anticipated expiration: 2041-02-06
Also published as: CN113035412B

Abstract

The invention discloses a data transmission cable of a transponder, which relates to the technical field of cables and comprises the following components: the cable comprises three star-quad groups, two first insulated wire cores, a comprehensive sheath shielding part, an inner lining layer and steel tape armoring, wherein the star-quad groups comprise four second insulated wire cores; the comprehensive sheath shielding part wraps the three star-twisted four-wire groups and the two first insulated wire cores; the inner liner layer comprises the comprehensive sheath shielding part; the steel tape armor wraps the inner liner. The invention has 14 insulation wire cores in total, can realize same-frequency and same-cable transmission, reduces the material cost and enlarges the application and application range of products.

Description

Transponder data transmission cable

Technical Field

The invention relates to the technical field of cables, in particular to a data transmission cable of a transponder.

Background

With the increasing railway construction and high-speed rail opening operation, the newly increased operation mileage is rapidly increased, the scale of a line network is continuously enlarged, the railway driving safety pressure and the challenges are increased day by day, and the requirements of the railway on the transponder data transmission cable for the transponder signal system and the application are higher and higher. In the past, the maximum core number of a cable is specified to be 4-core structure in the national transponder data transmission cable TB/T3100.6-2017 standard, and for some application and use environments needing to use more than 4-core structure, the existing product cannot meet the use requirements.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a transponder data transmission cable for increasing the number of core structures.

In view of the above object, the present invention provides a transponder data transmission cable comprising:

three star-quad groups, two first insulated wire cores, a comprehensive sheath shielding part, an inner lining layer and a steel tape armor, wherein,

the star quad group comprises four second insulated wire cores;

the comprehensive sheath shielding part wraps the three star-twisted four-wire groups and the two first insulated wire cores;

the inner liner layer comprises the comprehensive sheath shielding part;

the steel tape armor wraps the inner liner.

Optionally, the comprehensive sheath shielding part comprises two drainage lines, an aluminum-plastic composite belt is arranged outside the drainage lines, and a polyethylene sheath is extruded outside the aluminum-plastic composite belt.

Optionally, the first insulation wire core and the second insulation wire core both include conductors, and insulation layers wrap the outside of the conductors.

Optionally, the insulating layer is produced by adopting a polyolefin three-layer co-extrusion mode.

Optionally, an aluminum sheath shielding layer is arranged between the comprehensive sheath shielding part and the inner liner.

Optionally, the steel-tape armor is externally wrapped with a halogen-free low-smoke flame-retardant sheath.

Optionally, a plurality of annular protrusions are arranged on the steel belt armor, first through holes are formed in the annular protrusions, an outer sleeve wraps the annular protrusions, and a plurality of second through holes are formed in the outer sleeve.

Optionally, the outlet of the second through hole is tangent to the surface of the outer sleeve, and the outer sleeve is provided with a guide plate.

The cable has 14 insulation wire cores, can realize same-frequency same-cable transmission, reduces the material cost and enlarges the application and use range of the product. The inner liner can select for use the high fire-retardant oxygen layer that separates as the inner liner to prevent that flame and heat from transmitting to the cable core the inside, reduce the combustion volume and the calorific capacity of cable, greatly reduced the burning of cable. The steel strip armor adopts high-permeability low-carbon steel strips, the shielding coefficient of the cable is not more than 0.05, the shielding performance is improved, and the anti-interference performance of the cable in a signal building is improved.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a schematic structural diagram of a cable according to an embodiment of the present invention;

FIG. 2 is a schematic view of the construction of a jacket according to an embodiment of the present invention;

fig. 3 is a side view of the outer cover of fig. 2.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The embodiment of the invention provides a data transmission cable of a transponder. As shown in fig. 1 to 3, a transponder data transmission cable includes: three star-quad groups 1, two first insulated wire cores 2, a comprehensive sheath shielding part, an inner lining layer 3 and a steel tape armor 4, wherein,

the star quad 1 comprises four second insulated wire cores 5;

the comprehensive sheath shielding part wraps the three star quad groups 1 and the two first insulating cores 2;

the lining layer 3 comprises the comprehensive sheath shielding part;

the steel tape armor 4 wraps the inner liner layer 3.

The cable has 14 insulation wire cores, can realize same-frequency same-cable transmission, reduces the material cost and enlarges the application and use range of the product. High fire-retardant oxygen layer can be chooseed for use as inner liner 3 to prevent that flame and heat from transmitting to the cable core the inside, reduce the combustion volume and the calorific capacity of cable, greatly reduced the burning of cable. The steel strip armor 4 adopts a high-permeability low-carbon steel strip, the shielding coefficient of the cable is not more than 0.05, the shielding performance is improved, and the anti-interference performance of the cable in a signal building is improved.

In some embodiments, the integrated sheath shielding part comprises two drainage lines 61, an aluminum-plastic composite tape 62 is arranged outside the drainage lines 61, and a polyethylene sheath 63 is extruded outside the aluminum-plastic composite tape 62.

The leakage line 61 can be a TR type soft round copper wire with the diameter not less than 0.4mm, and the aluminum-plastic composite belt 62 is a single-sided aluminum-plastic composite belt 62 with a 0.26mm metal surface facing inwards.

In some embodiments, the first insulated wire core 2 and the second insulated wire core 5 each comprise a conductor 11, the conductor 11 being externally wrapped with an insulation layer 12. Optionally, the insulating layer 12 is produced by a polyolefin three-layer co-extrusion method. The insulating layer 12 adopts a skin-skin three-layer co-extrusion insulating process, the process can increase the adhesive force of the insulating layer 12 and the conductor 11, reduce the defects of increased dielectric loss and transmission attenuation caused by excessive addition of color masterbatch, and improve the electrical performance and the mechanical and physical performance of the product.

In some embodiments, an aluminum jacket shielding layer 7 is provided between the integrated jacket shielding and the inner liner 3. The aluminum sheath shielding layer 7 and the comprehensive sheath shielding part form a double-shielding structure, so that the shielding performance is improved, and the anti-interference performance of the cable in a signal building is improved.

In some embodiments, the steel armor 4 is externally wrapped with a halogen-free low smoke flame retardant jacket 8. The sheath adopts 8 materials of dedicated B1 level zero halogen low smoke flame retardant sheath, has reduced the smoke volume and the heat of burning of cable, and the cable has no halogen simultaneously, low smoke, fire-retardant, characteristics such as low toxicity, and during this cable burning, its heat gived off the total amount also low simultaneously, and the burning carbomorphism is highly little, has improved the security of railway signal cable in sealed environment greatly.

In some embodiments, a plurality of annular protrusions 91 are provided on the steel tape armor 4, a first through hole 92 is provided on the annular protrusion 91, an outer sleeve 93 is wrapped around the annular protrusion 91, smoke sensors are distributed on the outer sleeve 93, and a plurality of second through holes 94 are provided on the outer sleeve 93.

When the smoke sensor is used, a cavity formed between the steel strip armor 4 and the outer sleeve 93 is communicated with external carbon dioxide gas, and when smoke is detected by the smoke sensor, the carbon dioxide gas is discharged into the cavity and is discharged through the second through hole 94 to extinguish fire.

In some embodiments, the outlet of the second through hole 94 is tangential to the surface of the outer sleeve 93, and a baffle 95 is disposed on the outer sleeve 93. So can make carbon dioxide gas distribute around the cable, form a gaseous isolated layer, can effectively carry out fire prevention and put out a fire.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A transponder data transmission cable, comprising: three star-quad groups, two first insulated wire cores, a comprehensive sheath shielding part, an inner lining layer and a steel tape armor, wherein,

the star quad group comprises four second insulated wire cores;

the inner liner layer comprises the comprehensive sheath shielding part;

the steel tape armor wraps the inner liner.

2. The transponder data transmission cable of claim 1, wherein the integrated sheath shield comprises two drainage lines, an aluminum-plastic composite tape is disposed outside the drainage lines, and a polyethylene sheath is extruded outside the aluminum-plastic composite tape.

3. A transponder data transmission cable according to claim 1, wherein the first and second insulated cores each comprise a conductor, the conductor being externally coated with an insulating layer.

4. A transponder data transmission cable according to claim 3, characterized in that the insulating layer is produced by means of polyolefin triple-layer co-extrusion.

5. A transponder data transmission cable according to claim 1, characterized in that an aluminium sheath shielding layer is provided between the composite sheath shielding and the inner liner.

6. A transponder data transmission cable according to claim 1, wherein the steel armor is externally wrapped with a halogen-free low smoke flame retardant jacket.

7. A transponder data transmission cable according to claim 1, wherein the steel armour is provided with a plurality of annular projections, the annular projections being provided with first through holes, the annular projections being surrounded by a jacket, the jacket being provided with a plurality of second through holes.

8. A transponder data transmission cable according to claim 7 wherein the outlet of the second through hole is tangential to the surface of the outer sheath on which the baffle is provided.