CN219891927U - Halogen-free low-smoke flame-retardant power cable - Google Patents
Halogen-free low-smoke flame-retardant power cable Download PDFInfo
- Publication number
- CN219891927U CN219891927U CN202321142791.2U CN202321142791U CN219891927U CN 219891927 U CN219891927 U CN 219891927U CN 202321142791 U CN202321142791 U CN 202321142791U CN 219891927 U CN219891927 U CN 219891927U
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- Prior art keywords
- layer
- cable
- halogen
- free low
- wall
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000000779 smoke Substances 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 210000003953 foreskin Anatomy 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 9
- 239000002657 fibrous material Substances 0.000 abstract description 5
- 239000003365 glass fiber Substances 0.000 abstract description 5
- 229920005594 polymer fiber Polymers 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a halogen-free low-smoke flame-retardant power cable, which comprises a cable assembly, wherein the cable assembly comprises an inner core member, a wrapper is wrapped outside the inner core member, the wrapper comprises a framework layer, a metal layer is arranged on the inner wall of the side surface of the framework layer, bulges distributed in an equidistant structure are integrally formed on the outer wall of the side surface of the framework layer, a flame-retardant layer is wrapped outside the bulges, an outer wrapper is wrapped outside the flame-retardant layer, the inner core member comprises a core body, and a plurality of through holes are formed in the section of the core body. According to the utility model, the metal layer made of the thin metal strip by winding is matched with the skeleton layer made of the high polymer fiber material, so that the strength of the cable can be improved, the protection of an electrified conductor in the cable is improved, the shielding capacity of the cable can be improved by the metal layer, the structure of the inner layer package can be prevented from being influenced by the external temperature during ignition by the heat insulation layer, the fiber layer is made of glass fiber by winding, the tearing resistance of the cable sheath structure can be improved, and the damage probability of the sheath piece is reduced.
Description
Technical Field
The utility model relates to the technical field of halogen-free low-smoke flame-retardant power cables, in particular to a halogen-free low-smoke flame-retardant power cable.
Background
The low-smoke halogen-free power cable is a halogen-free cable during combustion, and is usually used for a fire disaster of the cable, and the low-smoke halogen-free power cable can be also called an environment-friendly cable, and is mostly used in hospitals and places with strict requirements on environmental sanitation.
The application number is CN201420291436.6, the authorized bulletin day 20141022 is a halogen-free low-smoke flame-retardant power cable, the cable conductor is a bare metal wire formed by winding a plurality of metal wire wires together, the crosslinked polyethylene insulating layer is coated on the cable conductor and permeates among the metal wire wires, the flame-retardant layer consisting of glass fiber belts is tightly coated on the outer layer of the crosslinked polyethylene insulating layer, and the halogen-free low-smoke polyolefin sheath is coated outside the flame-retardant layer. It is flame-retardant and water-resistant, and can not release halogen gas and smoke due to the combustion of halogen-free low-smoke polyolefin, further protecting the life safety of trapped personnel in the fire scene and improving the escape probability for the trapped personnel in the fire scene.
The existing halogen-free low-smoke flame-retardant cable has low strength, and when the cable is extruded in a strong mode such as vehicle pressure, a power-on conductor in the cable is damaged to influence the power on the cable, so that the design of the halogen-free low-smoke flame-retardant power cable is needed to solve the problems.
Disclosure of Invention
The utility model aims to provide a halogen-free low-smoke flame-retardant power cable, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a halogen-free low smoke flame retardant power cable, includes cable assembly, cable assembly includes the inner core spare, the outside parcel of inner core spare has the foreskin spare, the foreskin spare includes the framework layer, be provided with the metal level on the framework layer side inner wall, integrated into one piece has the arch that is equidistant structure distribution on the framework layer side outer wall, and protruding outside parcel has fire-retardant layer, the outside parcel of fire-retardant layer has the exocarp spare.
In another embodiment provided by the utility model, the inner core member comprises a core body, and a plurality of through holes are formed in the section of the core body.
In another embodiment provided by the utility model, five through holes are arranged, one through hole is positioned at the center of the core body, and the other four through holes are equidistantly distributed at the position, close to the edge, of the cross section of the core body in an annular structure.
In another embodiment provided by the utility model, four embedded grooves distributed in an annular structure at equal intervals are formed in the section of the core body, a cable core is embedded in the embedded grooves, and a plurality of metal wires are embedded in the cable core.
In another embodiment of the present utility model, the outer skin member includes an inner layer, a heat insulation layer is adhered to the outer wall of the side surface of the inner layer, and a fiber layer is wrapped on the outer wall of the side surface of the heat insulation layer.
In another embodiment provided by the utility model, the outer skin layer is wrapped on the outer wall of the side face of the fiber layer, and the reflecting layer is sprayed on the outer wall of the side face of the outer skin layer.
According to the halogen-free low-smoke flame-retardant power cable provided by the utility model, the strength of the cable can be improved by the metal layer and the skeleton layer, wherein the metal layer is formed by winding the thin metal belt and matched with the skeleton layer made of the high-molecular fiber material, the protection of an electrified conductor in the cable is improved, and the shielding capacity of the cable can be improved by the metal layer; (2) The heat insulation layer and the fiber layer are arranged, so that the heat insulation layer can prevent the outside temperature from influencing the structure of the inner layer package when in fire, and the fiber layer is made by winding glass fibers, thereby improving the tearing resistance of the cable sheath structure and reducing the damage probability of the sheath member; (3) The arranged reflecting layer is made of silver paint by spraying, so that sunlight can be reflected, and the temperature rise of the cable caused by sunlight irradiation in the daytime is avoided; (4) Through the through-hole that sets up, the design of through-hole not only can improve the intensity of core, can also reduce the weight of core.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic diagram of the overall structure provided by an embodiment of a halogen-free low-smoke flame-retardant power cable of the utility model.
Fig. 2 is a schematic cross-sectional view of an inner core member according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of a wrapping structure provided by an embodiment of a halogen-free low-smoke flame-retardant power cable of the utility model.
Fig. 4 is a schematic structural view of a sheath member provided by an embodiment of a halogen-free low-smoke flame-retardant power cable according to the present utility model.
Reference numerals illustrate:
1. a cable assembly; 2. an inner core member; 3. a wrapper; 4. a core; 5. a through hole; 6. an embedding groove; 7. a cable core; 8. a metal wire; 9. a metal layer; 10. a framework layer; 11. a flame retardant layer; 12. an outer skin member; 13. a protrusion; 14. an inner layer; 15. a thermal insulation layer; 16. a fibrous layer; 17. an outer skin layer; 18. and a light reflecting layer.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the halogen-free low-smoke flame-retardant power cable provided by the embodiment of the utility model comprises a cable assembly 1, wherein the cable assembly 1 comprises an inner core member 2, a wrapping member 3 is wrapped outside the inner core member 2, the wrapping member 3 comprises a framework layer 10, a metal layer 9 is arranged on the inner wall of the side surface of the framework layer 10, protrusions 13 distributed in an equidistant structure are integrally formed on the outer wall of the side surface of the framework layer 10, a flame-retardant layer 11 is wrapped outside the protrusions 13, and a sheath member 12 is wrapped outside the flame-retardant layer 11.
Specifically, in this embodiment, including cable assembly 1, cable assembly 1 includes core member 2, the outside parcel of core member 2 has wrapping member 3, wrapping member 3 is convenient for protect core member 2, wrapping member 3 includes framework layer 10, be provided with metal layer 9 on the framework layer 10 side inner wall, the intensity of cable can be improved by the framework layer 10 that the metal layer 9 that the thin strap winding was made cooperates the macromolecular fiber material to make, the protection to the cable internal conductor that has been put forward is improved, and metal layer 9 can also improve the shielding ability of cable, integrated into one piece has the protruding 13 that is equidistant structure distribution on the framework layer 10 side outer wall, and protruding 13 outside parcel has fire-retardant layer 11, fire-retardant layer 11 is made by fire-retardant material, fire-retardant ability to this cable can be improved, fire-retardant layer 11 outside parcel has sheath member 12, sheath member 12 can improve the protection ability to core member 2.
According to the halogen-free low-smoke flame-retardant power cable provided by the utility model, the metal layer 9 formed by winding the thin metal belt is matched with the skeleton layer 10 made of the high-molecular fiber material, so that the strength of the cable can be improved, the protection of an electrified conductor in the cable is improved, and the shielding capacity of the cable can be improved by the metal layer 9.
In another embodiment provided by the utility model, as shown in fig. 2, the inner core member 2 comprises a core body 4, a plurality of through holes 5 are formed in the cross section of the core body 4, the strength of the core body 4 can be improved, the weight of the core body 4 can be reduced due to the design of the through holes 5, five through holes 5 are arranged at the center of the core body 4, four through holes 5 are distributed at the position, close to the edge, of the cross section of the core body 4 in an equidistant annular structure, four embedded grooves 6 distributed in an equidistant annular structure are formed in the cross section of the core body 4, the cable core 7 is conveniently installed on the core body 4, the cable core 7 is embedded in the embedded grooves 6, a plurality of metal wires 8 are embedded in the cable core 7, and the metal wires 8 can be conductive conductor metals such as aluminum wires and copper wires.
In another embodiment provided by the utility model, as shown in fig. 4, the outer skin 12 comprises an inner layer 14, the outer wall of the side surface of the inner layer 14 is adhered with a heat insulation layer 15, the heat insulation layer 15 is made of rock wool, the influence of the external temperature on the structure in the wrapping of the inner layer 14 can be reduced, the outer wall of the side surface of the heat insulation layer 15 is wrapped with a fiber layer 16, the fiber layer 16 is made of glass fiber in a winding manner, the tearing resistance of the cable outer skin structure can be improved, the damage probability of the outer skin 12 is reduced, the outer skin 17 is wrapped on the outer wall of the side surface of the fiber layer 16, the outer skin 17 is made of crosslinked polyethylene, the outer wall of the side surface of the outer skin 17 is sprayed with a reflecting layer 18, and the reflecting layer 18 is made of silver paint in a spraying manner, so that sunlight can be reflected, and the cable temperature rise caused by sunlight irradiation in daytime is avoided.
Working principle: when the cable is applied, the metal layer 9 which is formed by winding a thin metal belt is matched with the framework layer 10 which is made of a high polymer fiber material, so that the strength of the cable can be improved, the protection of an electrified conductor in the cable is improved, the metal layer 9 can also improve the shielding capability of the cable, moreover, in the daytime, the light reflecting layer 18 which is formed by spraying silver paint can reflect sunlight, the heat insulating layer 15 can prevent the outside temperature from affecting the structure wrapped by the inner layer 14 when the sunlight irradiates or catches fire, the fiber layer 16 is formed by winding glass fibers, the tearing resistance of the cable sheath structure can be improved, the damage probability of the sheath piece 12 is reduced, and the design of the through hole 5 can not only improve the strength of the core 4, but also reduce the weight of the core 4.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The utility model provides a halogen-free low smoke flame retardant power cable, includes cable assembly (1), its characterized in that, cable assembly (1) includes inner core spare (2), the outside parcel of inner core spare (2) has foreskin piece (3), foreskin piece (3) include skeleton layer (10), be provided with metal layer (9) on skeleton layer (10) side inner wall, integrated into one piece has protruding (13) that are equidistant structural distribution on skeleton layer (10) side outer wall, and protruding (13) outside parcel has flame retardant coating (11), flame retardant coating (11) outside parcel has exocarp (12).
2. A halogen-free low-smoke flame-retardant power cable according to claim 1, characterized in that the core member (2) comprises a core body (4), and a plurality of through holes (5) are formed in the cross section of the core body (4).
3. A halogen-free low smoke flame retardant power cable according to claim 2, wherein five through holes (5) are provided, one of the through holes is positioned at the center of the core body (4), and the other four through holes (5) are distributed at the position, close to the edge, of the cross section of the core body (4) in an equidistant annular structure.
4. The halogen-free low-smoke flame-retardant power cable according to claim 2, wherein four embedded grooves (6) distributed in an annular structure at equal intervals are formed in the section of the core body (4), a cable core (7) is embedded in the embedded grooves (6), and a plurality of metal wires (8) are embedded in the cable core (7).
5. A halogen-free low smoke flame retardant power cable according to claim 1, wherein the outer sheath member (12) comprises an inner layer (14), a heat insulating layer (15) is adhered to the side outer wall of the inner layer (14), and a fiber layer (16) is wrapped on the side outer wall of the heat insulating layer (15).
6. The halogen-free low-smoke flame-retardant power cable according to claim 5, wherein the outer wall of the side face of the fiber layer (16) is wrapped with an outer skin layer (17), and the outer wall of the side face of the outer skin layer (17) is sprayed with a light reflecting layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142791.2U CN219891927U (en) | 2023-05-12 | 2023-05-12 | Halogen-free low-smoke flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142791.2U CN219891927U (en) | 2023-05-12 | 2023-05-12 | Halogen-free low-smoke flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219891927U true CN219891927U (en) | 2023-10-24 |
Family
ID=88402969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321142791.2U Active CN219891927U (en) | 2023-05-12 | 2023-05-12 | Halogen-free low-smoke flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219891927U (en) |
-
2023
- 2023-05-12 CN CN202321142791.2U patent/CN219891927U/en active Active
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