CN207833963U - A kind of railcar special high temperature-resistant multicore cable - Google Patents
A kind of railcar special high temperature-resistant multicore cable Download PDFInfo
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- CN207833963U CN207833963U CN201820249229.2U CN201820249229U CN207833963U CN 207833963 U CN207833963 U CN 207833963U CN 201820249229 U CN201820249229 U CN 201820249229U CN 207833963 U CN207833963 U CN 207833963U
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- restrictive coating
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- coated
- cable
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Abstract
The utility model discloses a kind of railcar special high temperature-resistant multicore cables, including：Cable core and the restrictive coating for being coated on cable core periphery, wherein：Cable core includes more cores and the wrapping layer for being coated on more core peripheries successively, interior extrude layer, shielded layer and extrude layer outside；It inside extrudes layer to be made by low-smoke halogen-free flame-retardant isolating material, shielded layer is made by metal material, is extruded layer outside and is made by thermal expansion material；Restrictive coating is made by elastic material, and restrictive coating be equipped with several ducts up and down, and when restrictive coating in the raw when, each duct is in closed state.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 multicore cables.
Background technology
Existing railcar is with cable in place of high temperature resistant conveniently 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
Multicore cable.
The utility model proposes a kind of railcar special high temperature-resistant multicore cables, including：Cable core and it is coated on cable
The restrictive coating of core periphery, wherein：
Cable core includes more cores and the wrapping layer for being coated on more core peripheries successively, interior extrudes layer, shielded layer and outer
Extrude layer；It inside extrudes layer to be made by low-smoke halogen-free flame-retardant isolating material, shielded layer is made by metal material, is extruded outside
Layer is made by thermal expansion material；
Restrictive coating is made by elastic material, and restrictive coating is equipped with several ducts up and down, and works as restrictive coating
When in the raw, each duct is in closed state.
Preferably, restrictive coating and outer extrude extend in the same direction equipped with several with cable core between layer and uniformly distributed around cable core annular
Heat dissipation channel；Several are equipped on restrictive coating and at any one heat dissipation channel to be connected to heat dissipation channel and along heat dissipation lead to
The duct of road extending direction spacing arrangement.
Preferably, the inner peripheral surface of restrictive coating is equipped with several and is extended in the same direction with it and around uniformly distributed linear recessed of its inner cavity annular
Slot, when restrictive coating be coated on it is outer extrude layer periphery when, between having between the inner peripheral surface and the peripheral surface for extruding layer of each linear grooves
Away to form heat dissipation channel.
Preferably, core includes the flexible conductor being twisted by tinned copper wire and is coated on the insulating layer of flexible conductor periphery.
In the utility model, the making of layer choosing low-smoke halogen-free flame-retardant isolating material is inside extruded, to make it have good resistance
Fuel efficiency fruit；Shielded layer is made by metal material, has hardness while to make it have shield effectiveness；It is outer to extrude layer choosing use
Thermal expansion material makes, so that it, which is heated, can generate thermal expansion, and can only be expanded outward under the limit of shielded layer；Restrictive coating
It selects elastic material to make, so as to extrude circumferentially extending under the action of layer expansive force outside, is beaten to make the duct of closure enter
Open state, so that the heat inside cable can be gone out with rapid divergence, so that the high temperature resistance of the cable is able to significantly
It improves.
Description of the drawings
Fig. 1 be the utility model proposes a kind of railcar special high temperature-resistant multicore 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 multicore cable structure
Schematic diagram.
Referring to Fig.1, a kind of railcar special high temperature-resistant multicore cable that the utility model embodiment proposes, including：
Cable core and the restrictive coating 1 for being coated on cable core periphery, wherein：Cable core includes more cores 2 and is coated on more 2 peripheries of core successively
Wrapping layer 3, interior extrude layer 4, shielded layer 5 and extrude layer 6 outside.
Core 2 includes the flexible conductor being twisted by tinned copper wire and is coated on the insulating layer of flexible conductor periphery.Inside extrude
Layer 4 is made by low-smoke halogen-free flame-retardant isolating material, to make it have good flame retardant effect.Shielded layer 5 is by metal material
It is made, there is hardness while to make it have shield effectiveness.Outside layer 6 is extruded to be made by thermal expansion material, so that
It, which is heated, can generate thermal expansion.Restrictive coating 1 is made by elastic material, to make it have elastic property, and on restrictive coating 1
Equipped with several ducts up and down, and when restrictive coating 1 in the raw when, each duct is in closed state.
The utility model works in this way：When extruding the generation thermal expansion of layer 6 outside being caused when cable internal heat is excessive,
Restrictive coating 1 is set to flex outward using the expansive force for extruding layer 6 outside, to make the duct of closure enter opening state, so that cable
Internal heat can be gone out with rapid divergence, so that the high temperature resistance of the cable is greatly improved.
In addition, in the present embodiment, the inner peripheral surface of restrictive coating 1 extended in the same direction with it equipped with several and around its inner cavity annular
The linear grooves of cloth, when restrictive coating 1, which is coated on, extrudes 6 periphery of layer outside, the inner peripheral surface of each linear grooves and the periphery for extruding layer
Have spacing to form heat dissipation channel 7 between face；It is equipped with several on restrictive coating 1 and at any one heat dissipation channel 7
It is connected to heat dissipation channel 7 and along the duct that 7 extending direction spacing of heat dissipation channel is arranged, so that air-flow can be in heat dissipation channel 7
Flowing, to further increase heat dissipation effect.
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 multicore cable, which is characterized in that including：Cable core and it is coated on cable core periphery
Restrictive coating (1), wherein：
Cable core includes more cores (2) and the wrapping layer (3) for being coated on more core (2) peripheries successively, interior extrudes layer (4), screen
It covers layer (5) and extrudes layer (6) outside；It inside extrudes layer (4) to be made by low-smoke halogen-free flame-retardant isolating material, shielded layer (5) is by gold
Belong to material to be made, extrudes layer (6) outside and be made by thermal expansion material；
Restrictive coating (1) is made by elastic material, and restrictive coating (1) is equipped with several ducts up and down, and works as sheath
Layer (1) in the raw when, each duct is in closed state.
2. railcar according to claim 1 special high temperature-resistant multicore cable, which is characterized in that restrictive coating (1) with
Outer extrude extends in the same direction between layer (6) equipped with several with cable core and around the uniformly distributed heat dissipation channel of cable core annular (7)；Restrictive coating
(1) on and several are equipped at any one heat dissipation channel (7) to be connected to heat dissipation channel (7) and along heat dissipation channel (7)
The duct of extending direction spacing arrangement.
3. railcar according to claim 2 special high temperature-resistant multicore cable, which is characterized in that restrictive coating (1)
Inner peripheral surface extends in the same direction with it equipped with several and around the uniformly distributed linear grooves of its inner cavity annular, outside restrictive coating (1) is coated on
When extruding layer (6) periphery, have spacing to form heat dissipation channel between the inner peripheral surface and the peripheral surface for extruding layer of each linear grooves
(7)。
4. railcar according to any one of claim 1-3 special high temperature-resistant multicore cable, which is characterized in that line
Core (2) includes the flexible conductor being twisted by tinned copper wire and is coated on the insulating layer of flexible conductor periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249229.2U CN207833963U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant multicore cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249229.2U CN207833963U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant multicore cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833963U true CN207833963U (en) | 2018-09-07 |
Family
ID=63397847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249229.2U Active CN207833963U (en) | 2018-02-11 | 2018-02-11 | A kind of railcar special high temperature-resistant multicore cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833963U (en) |
Cited By (2)
| 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 |
| CN112271023A (en) * | 2020-10-22 | 2021-01-26 | 无锡市宇盛线缆有限公司 | Anti-overheating cable |
-
2018
- 2018-02-11 CN CN201820249229.2U patent/CN207833963U/en active Active
Cited By (3)
| 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 |
| CN112271023A (en) * | 2020-10-22 | 2021-01-26 | 无锡市宇盛线缆有限公司 | Anti-overheating cable |
| CN112271023B (en) * | 2020-10-22 | 2021-03-26 | 无锡市宇盛线缆有限公司 | Anti-overheating cable |
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