CN216849428U - Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable - Google Patents
Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable Download PDFInfo
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- CN216849428U CN216849428U CN202220024702.3U CN202220024702U CN216849428U CN 216849428 U CN216849428 U CN 216849428U CN 202220024702 U CN202220024702 U CN 202220024702U CN 216849428 U CN216849428 U CN 216849428U
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Abstract
The utility model discloses a crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable, which comprises a cable core and a comprehensive sheath, wherein the cable core consists of three insulated conductors, each insulated conductor consists of three stranded conductors, a pair-twisted wrapping tape and a metal shielding layer which are sequentially wrapped outside the stranded conductors, and the stranded conductors consist of alloy conductors and crosslinked polyethylene insulating layers coaxially wrapped outside the alloy conductors; the cable comprises a metal main shielding layer, a comprehensive sheath, and a compression-resistant ring core, a pressure-bearing ring core, a fire-resistant layer and an outer sheath layer, wherein the compression-resistant ring core, the pressure-bearing ring core, the fire-resistant layer and the outer sheath layer are coaxially wrapped on the outer wall of the metal main shielding layer in sequence. The utility model discloses to screen line distribution inequality, the short scheduling problem of life improve in prior art, the utility model has the advantages of excellent current stability, inside partial screen line distribute evenly, long service life.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a crosslinked polyethylene insulation does not have steamed low fire-retardant computer cable of cigarette.
Background
At present, the cable for computer is widely applied to computer systems or automation devices for detection and control in power generation, metallurgy, petroleum, chemical engineering, light textile and other departments, and general industrial computers, and has been widely applied due to strong signal transmission capability and high anti-interference performance.
However, with the development of science and technology, the requirements for the stability and the anti-interference performance of computer current are higher and higher, the existing computer cable has defects in service life, current stability and anti-interference performance, and in addition, because the existing computer cable is usually internally provided with multi-component screen lines, the multi-component screen lines are unevenly distributed and are distributed in an electric field, so that the performance of the cable is influenced.
To above technical problem, the utility model discloses a low fire-retardant computer cable of steamed low cigarette of crosslinked polyethylene insulation, the utility model has the advantages of excellent current stability and interference killing feature, interior partial screen line distribute evenly, long service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a low fire-retardant computer cable of steamed low cigarette of crosslinked polyethylene insulation to solve among the prior art computer cable current stability and anti-interference ability relatively poor, interior split screen line distributes unevenly, life weak point. The utility model has the advantages of excellent current stability and anti-interference ability, interior split screen line distribute evenly, long service life.
The utility model discloses a following technical scheme realizes: the utility model discloses a cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable, which comprises a cable core and a comprehensive sheath, wherein the cable core consists of three insulated wires, each insulated wire consists of three stranded wires, a pair-stranded wrapping tape and a metal shielding layer which are sequentially wrapped outside the stranded wires, and the stranded wires consist of alloy conductors and cross-linked polyethylene insulating layers coaxially extruded outside the alloy conductors; the cable comprises a main shielding layer, a comprehensive sheath, a compression-resistant ring core, a pressure-bearing ring core, a flame retardant coating and an outer sheath layer, wherein the compression-resistant ring core, the pressure-bearing ring core, the flame retardant coating and the outer sheath layer are coaxially wrapped on the outer wall of the main shielding layer in sequence.
Furthermore, in order to enable the cable to have a better fire-resistant and flame-retardant effect, the fire-resistant layer is made of ceramic silicon rubber materials.
Furthermore, in order to facilitate the outer layer of the cable to be attached to the outer layer of the cable after external pressure, the effect of shock absorption and pressure reduction is achieved, the influence of external pressure on the performance of the cable is reduced, the buffer bulges are arranged on the adjacent surfaces of the compression-resistant ring core and the pressure-bearing ring core at equal intervals, the buffer cavity is reserved between every two adjacent buffer bulges, and the buffer bulges on the adjacent surfaces of the compression-resistant ring core and the pressure-bearing ring core are arranged in a staggered mode.
Furthermore, in order to facilitate the environmental protection and the long service life of the cable, the outer sheath layer is made of halogen-free low-smoke polyolefin material.
Furthermore, in order to improve the heat-resistant stability and the impact resistance of the cable, the cabling wrapping tape and the pair twisting wrapping tape are both polyester tapes.
Furthermore, the split screen lines are conveniently separated, and the filler is dust-free asbestos ropes.
The utility model has the advantages of it is following:
(1) the utility model discloses be equipped with the filler that is used for separating the branch screen line in the cable, the filler has high fire resistance, electrical insulation and thermal insulation, and can divide the space between each branch screen line and carry out spacing to the branch screen line when possessing above excellent characteristic to keep the evenly distributed of branch screen line, promote computer cable current stability and interference killing feature, can also avoid the cable to receive the inside fracture condition that appears of screen line when external striking, in order to prolong cable life;
(2) the utility model discloses be equipped with the resistance to compression ring core and the pressure-bearing ring core of mutually supporting in the cable, can laminate mutually after receiving the external pressure and make buffering lug extrude the buffering intracavity with neutralization external force, play and inhale the effect of inhaling the shake decompression, reduce the influence of external pressure to the cable performance, the oversheath layer is made by no halogen-free low cigarette polyolefin material, no halogen-free low cigarette polyolefin material possesses low smoke volume, characteristics such as high fire-retardant and environmental protection, and has better ageing resistance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the compression-resistant ring core of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
In the figure: 1. a cable core; 2. a comprehensive sheath; 3. an insulated wire; 4. stranding the wires; 401. an alloy conductor; 402. a crosslinked polyethylene insulating layer; 5. twining a wrapping tape; 6. a metal sub-shielding layer; 7. a filler; 8. cabling wrapping tape; 9. a metal total shield layer; 10. an outer jacket layer; 11. a compression resistant ring core; 12. a pressure-bearing ring core; 13. a refractory layer.
Detailed Description
The following embodiments of the present invention are described in detail, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments, and in the description of the present invention, words like "front", "back", "left", "right", etc. indicating directions or position relations are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
The utility model provides a technical scheme: a cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable is shown in figures 1 to 3 and comprises a cable core 1 and a comprehensive sheath 2, wherein the cable core 1 consists of three insulated wires 3, each insulated wire 3 consists of three stranded wires 4, a pair-twisted wrapping tape 5 and a metal shielding layer 6 which are sequentially wrapped outside the stranded wires 4, and each stranded wire 4 consists of an alloy conductor 401 and a cross-linked polyethylene insulating layer 402 which is coaxially extruded outside the alloy conductor 401; the packing 7 is filled between the adjacent insulated wires 3, the cable core 1, the packing 7 are wrapped with the cabling wrapping belt 8, the cabling wrapping belt 8 outer wall is wrapped with the metal total shielding layer 9 in an extruding mode, the metal total shielding layer 9 is wrapped with the comprehensive sheath 2 in an extruding mode, and the comprehensive sheath 2 comprises the pressure-resistant ring core 11, the pressure-resistant ring core 12, the fire-resistant layer 13 and the outer sheath layer 10 which are sequentially and coaxially wrapped on the metal total shielding layer 9 outer wall in an extruding mode.
As shown in fig. 1 and 3, the fire-resistant layer 13 is made of ceramic silicon rubber, which has excellent characteristics of fire resistance, flame retardance, low smoke, no toxicity and the like, and the extrusion molding process is simple.
As shown in figures 1 and 3, the adjacent surfaces of the compression-resistant ring core 11 and the pressure-bearing ring core 12 are provided with buffering protrusions at equal intervals, a buffering cavity is reserved between every two adjacent buffering protrusions, and the buffering protrusions on the adjacent surfaces of the compression-resistant ring core 11 and the pressure-bearing ring core 12 are arranged in a staggered mode, so that the outer layer of the cable is attached to the outer layer of the cable after external pressure to achieve the effect of shock absorption and pressure reduction.
As shown in fig. 1 and 3, the outer sheath layer 10 is made of a halogen-free low-smoke polyolefin material, and has good aging resistance and environmental protection.
As shown in fig. 1 and 2, the cabling wrapping tape 8 and the pair twisting wrapping tape 5 are both polyester tapes, so that the heat resistance stability and the impact resistance of the cable are improved.
As shown in fig. 1 and 2, the filler 7 is a dust-free asbestos cord to facilitate separation of the parting lines.
The principle of the utility model is as follows: the cable is internally provided with the filler 7 for separating the split screen lines, the filler 7 has high fire resistance, electrical insulation and heat insulation, and the excellent characteristics are achieved, meanwhile, the space among the split screen lines can be divided, and the split screen lines can be limited, so that the uniform distribution of the split screen lines is kept, and the influence on the performance of the cable is avoided; be equipped with the resistance to compression ring core 11 and the pressure-bearing ring core 12 of mutually supporting in the cable, can laminate mutually and play the effect of inhaling the shake decompression after receiving the external pressure, reduce the influence of external pressure to the cable performance, oversheath layer 10 is made by halogen-free low smoke polyolefin material, possesses characteristics such as low smoke volume, high fire-retardant and environmental protection, still is equipped with flame retardant coating 13 of being made by ceramic silicon rubber material, makes the cable have splendid fire behavior.
Claims (6)
1. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable is characterized by comprising a cable core and a comprehensive sheath, wherein the cable core consists of three insulated wires, each insulated wire consists of three stranded wires, a pair-stranded wrapping tape and a metal shielding layer which are sequentially wrapped outside the stranded wires, and each stranded wire consists of an alloy conductor and a cross-linked polyethylene insulating layer which is coaxially extruded outside the alloy conductor; the cable is characterized in that filler is filled between adjacent insulated wires, a cable core and the filler are wrapped with a cable wrapping belt, the outer wall of the cable wrapping belt is wrapped with a metal total shielding layer in an extruding mode, a comprehensive sheath is wrapped outside the metal total shielding layer in an extruding mode, and the comprehensive sheath comprises a compression-resistant ring core, a pressure-bearing ring core, a fire-resistant layer and an outer sheath layer which are sequentially and coaxially wrapped on the outer wall of the metal total shielding layer in an extruding mode.
2. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable according to claim 1, wherein the flame retardant layer is made of ceramic silicone rubber material.
3. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable as claimed in claim 1, wherein the adjacent surfaces of the compression-resistant ring core and the pressure-bearing ring core are provided with buffering protrusions at equal intervals, a buffering cavity is reserved between every two adjacent buffering protrusions, and the buffering protrusions on the adjacent surfaces of the compression-resistant ring core and the pressure-bearing ring core are arranged in a staggered manner.
4. The cross-linked polyethylene insulated halogen-free low-smoke flame retardant computer cable of claim 1 wherein the outer jacket layer is made of a halogen-free low-smoke polyolefin material.
5. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable as claimed in claim 1, wherein the cabling wrapping tape and the pair twisting wrapping tape are both polyester tapes.
6. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant computer cable according to claim 1, wherein the filler is a dust-free asbestos cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220024702.3U CN216849428U (en) | 2022-01-04 | 2022-01-04 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220024702.3U CN216849428U (en) | 2022-01-04 | 2022-01-04 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable |
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| Publication Number | Publication Date |
|---|---|
| CN216849428U true CN216849428U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220024702.3U Active CN216849428U (en) | 2022-01-04 | 2022-01-04 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant computer cable |
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| CN (1) | CN216849428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU223492U1 (en) * | 2023-12-29 | 2024-02-21 | Общество с ограниченной ответственностью "Камский кабель" | Explosion-proof power cable with sealed metal shield |
-
2022
- 2022-01-04 CN CN202220024702.3U patent/CN216849428U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU223492U1 (en) * | 2023-12-29 | 2024-02-21 | Общество с ограниченной ответственностью "Камский кабель" | Explosion-proof power cable with sealed metal shield |
| RU224655U1 (en) * | 2024-01-25 | 2024-04-01 | Общество с ограниченной ответственностью "Камский кабель" | Explosion-proof cable with sealed overall shield |
| RU224936U1 (en) * | 2024-01-29 | 2024-04-09 | Общество с ограниченной ответственностью "Камский кабель" | Explosion-proof cable |
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