CN207833996U - A kind of railcar special high temperature-resistant single-core cable - Google Patents
A kind of railcar special high temperature-resistant single-core cable Download PDFInfo
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- CN207833996U CN207833996U CN201820249267.8U CN201820249267U CN207833996U CN 207833996 U CN207833996 U CN 207833996U CN 201820249267 U CN201820249267 U CN 201820249267U CN 207833996 U CN207833996 U CN 207833996U
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Abstract
The utility model discloses a kind of railcar special high temperature-resistant single-core cables, including：Cable core and the inner restrictive coating and external sheath layer for being coated on cable core periphery successively, wherein：Inner restrictive coating includes liner layer and is coated on the layer that extrudes of liner layer periphery, and the liner layer is made by heat safe elastic material, and the layer that extrudes is made by heat-shrinkage material；External sheath layer includes inner sleeve and is coated on the outer jacket of inner sleeve periphery, the inner sleeve is made by hard material, and inner sleeve is equipped with several inner via holes, the outer jacket is made by heat-resistant fireproof material, and is equipped with the accessibke porosity be connected with the inner via hole on outer jacket and positioned at any one through hole.The utility model has good high temperature resistance.
Description
Technical field
The utility model is related to field of cable technology more particularly to a kind of railcar special high temperature-resistant single-core cables.
Background technology
Urban light rail and subway are mainly used in subway transportation and elevated railway traffic etc. with single-core cable, need good
High temperature resistance.The place however existing high temperature-resistant cable still has some deficits, it would be highly desirable to improve.
Utility model content
Based on above-mentioned background technology, the utility model proposes a kind of railcar special high temperature-resistants
Single-core cable.
The utility model proposes a kind of railcar special high temperature-resistant single-core cables, including：It cable core and coats successively
Inner restrictive coating and external sheath layer in cable core periphery, wherein：
Inner restrictive coating includes liner layer and is coated on the layer that extrudes of liner layer periphery, and the liner layer is by heat safe elasticity
Material is made, and the layer that extrudes is made by heat-shrinkage material；
External sheath layer includes inner sleeve and is coated on the outer jacket of inner sleeve periphery, and the inner sleeve is made by hard material
It forms, and inner sleeve is equipped with several inner via holes, the outer jacket is made by heat-resistant fireproof material, and on outer jacket
And it is equipped with the accessibke porosity be connected with the inner via hole positioned at any one through hole.
Preferably, liner layer is internally provided with several stomatas.
Preferably, cable core includes the flexible conductor being twisted by tinned copper wire and is coated on the insulating layer of flexible conductor periphery,
The insulating layer is made by halogen-free low-smoke flame retardant material.
Preferably, cable core further includes the Halogen separation layer for being coated on insulating layer periphery.
It in the utility model, is configured, is made interior in inner restrictive coating by the structure to inner restrictive coating and external sheath layer
Lining is made by heat safe elastic material, and the layer that extrudes in inner restrictive coating is made to be made by heat-shrinkage material, is made outer
Inner sleeve in restrictive coating is made by hard material, so that outer jacket is made by heat-resistant fireproof material, and make inner sleeve
Cylinder is equipped with several inner via holes, is equipped on outer jacket and positioned at any one through hole be connected with the inner via hole outer and leads to
Hole；So that when the cable heated, it can be in inner restrictive coating and external sheath layer using the bullet change of the thermal contraction and liner layer that extrude layer
Between form space, to enhance result of ventilating heat dissipation, so that the high temperature resistance of the cable is greatly improved.
Description of the drawings
Fig. 1 be the utility model proposes a kind of railcar special high temperature-resistant single-core cable structural schematic diagram.
Specific implementation mode
In the following, the technical solution of the utility model is described in detail by specific embodiment.
As shown in FIG. 1, FIG. 1 is the utility model proposes a kind of railcar special high temperature-resistant single-core cable structure
Schematic diagram.
Referring to Fig.1, a kind of railcar special high temperature-resistant single-core cable that the utility model embodiment proposes, including：
Cable core 1 and the inner restrictive coating 2 and external sheath layer 3 for being coated on 1 periphery of cable core successively, wherein：
Inner restrictive coating 2 includes liner layer 21 and be coated on 21 periphery of liner layer extrude layer 22, and the liner layer 21 is by resistance to
The elastic material of high temperature is made, and the layer 22 that extrudes is made by heat-shrinkage material.External sheath layer 3 includes inner sleeve 31
With the outer jacket 32 for being coated on 31 periphery of inner sleeve, the inner sleeve 31 is made by hard material, and is set on inner sleeve 31
There are several inner via holes, the outer jacket 32 to be made by heat-resistant fireproof material, and on outer jacket 32 and positioned at any one
A through hole is equipped with the accessibke porosity be connected with the inner via hole.
The utility model works in this way：, it is configured, is made interior by the structure to inner restrictive coating 2 and external sheath layer 3
Liner layer 21 in restrictive coating 2 is made by heat safe elastic material, makes to extrude layer 22 by being heat-shrinked in inner restrictive coating 2
Material is made, and so that the inner sleeve 31 in external sheath layer 3 is made by hard material, makes outer jacket 32 by heat-resistant fireproof
Material is made, and inner sleeve 31 is made to be equipped with several inner via holes, on outer jacket 32 and equal positioned at any one through hole
Equipped with the accessibke porosity be connected with the inner via hole；So that when the cable heated, the thermal contraction and liner layer 21 for extruding layer 22 is utilized
Bullet change can form space between inner restrictive coating 2 and external sheath layer 3, to enhance result of ventilating heat dissipation, so that the cable
High temperature resistance be greatly improved.
In addition, in the present embodiment, liner layer 21 is internally provided with several stomatas, so that liner layer 21 itself is with good
Gas, so that it in the case where being not affected by extruding, makes have good heat dissipation, heat insulation inside cable.
In the present embodiment, cable core 1 includes the flexible conductor 11 being twisted by tinned copper wire, is coated on 11 periphery of flexible conductor
Insulating layer 12 and the Halogen separation layer 13 for being coated on 12 periphery of insulating layer, the insulating layer 12 are made by halogen-free low-smoke flame retardant material
It forms, so that cable core 1 itself has good high temperature resistance.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of railcar special high temperature-resistant single-core cable, which is characterized in that including：Cable core (1) and it is coated on cable successively
The inner restrictive coating (2) and external sheath layer (3) of core (1) periphery, wherein：
Inner restrictive coating (2) includes liner layer (21) and be coated on liner layer (21) periphery extrude layer (22), the liner layer
(21) it is made by heat safe elastic material, the layer (22) that extrudes is made by heat-shrinkage material；
External sheath layer (3) includes inner sleeve (31) and the outer jacket (32) for being coated on inner sleeve (31) periphery, the inner sleeve
(31) it is made by hard material, and inner sleeve (31) is equipped with several inner via holes, the outer jacket (32) is by high temperature resistant
Fire proofing is made, and on outer jacket (32) and positioned at any one through hole be equipped be connected with the inner via hole it is outer lead to
Hole.
2. railcar according to claim 1 special high temperature-resistant single-core cable, which is characterized in that in liner layer (21)
Portion is equipped with several stomatas.
3. the railcar special high temperature-resistant single-core cable according to any one of claim 1-2, which is characterized in that cable
Core (1) includes the flexible conductor (11) being twisted by tinned copper wire and the insulating layer (12) for being coated on flexible conductor (11) periphery, institute
Insulating layer (12) is stated to be made by halogen-free low-smoke flame retardant material.
4. railcar according to claim 3 special high temperature-resistant single-core cable, which is characterized in that cable core (1) also wraps
Include the Halogen separation layer (13) for being coated on insulating layer (12) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249267.8U CN207833996U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant single-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249267.8U CN207833996U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant single-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833996U true CN207833996U (en) | 2018-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249267.8U Active CN207833996U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant single-core cable |
Country Status (1)
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| CN (1) | CN207833996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710466A (en) * | 2020-06-19 | 2020-09-25 | 安徽渡江电缆集团有限公司 | Flame-retardant 5G cable |
-
2018
- 2018-02-11 CN CN201820249267.8U patent/CN207833996U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710466A (en) * | 2020-06-19 | 2020-09-25 | 安徽渡江电缆集团有限公司 | Flame-retardant 5G cable |
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