CN111883308A

CN111883308A - Cable with toughened glass outer layer

Info

Publication number: CN111883308A
Application number: CN202010770302.2A
Authority: CN
Inventors: 吴显玉; 许德生; 李家平
Original assignee: Anhui Huanyu Cable Group Co ltd
Current assignee: Anhui Huanyu Cable Group Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-11-03

Abstract

The invention discloses a cable with a toughened glass outer layer, which comprises a protective layer, wherein a flame-retardant layer is bonded on the inner wall of the protective layer through an adhesive, a sheath is arranged on the inner wall of the flame-retardant layer, a cable core is arranged in the sheath, a filling layer is filled in a gap formed by the flame-retardant layer and the sheath, the number of the cable cores is four, and a reinforcing core is arranged in the sheath and positioned in the middle of the cable core. This cable with toughened glass is outer has fire-retardant layer through the adhesive bonding of the inner wall of protective layer, can not make inside cable expose externally, can prevent the emergence of the condition of electrocuting, has improved the security of cable use, is five millimeters through the average thickness of protective layer, the holistic fire behaviour of cable that can strengthen, the setting of inside first insulation layer and second insulation layer can improve the insulating nature of cable moreover.

Description

Cable with toughened glass outer layer

Technical Field

The invention relates to the technical field of power cables, in particular to a cable with a toughened glass outer layer.

Background

The electric wire and cable are materials used for electric power, electric and related transmission purposes, the electric wire and the cable are not strict in limits, products with small core number, small product diameter and simple structure are generally called electric wires, products without insulation are called bare wires, and other products are called cables; the silicon rubber cable is suitable for fixedly laying power transmission lines or connecting cables for mobile electric appliances with the AC rated voltage of 0.6/1KV or below, has the characteristics of heat radiation resistance, cold resistance, acid and alkali resistance, corrosive gas resistance, water resistance and the like, is soft in cable structure, convenient to radiate, stable in electrical performance in high-temperature (high and cold) environments, outstanding in ageing resistance and long in service life, is widely used in the industries of metallurgy, electric power, petrochemical industry, electronics, automobile manufacturing and the like, is suitable for movably or fixedly laying electric appliance instrument connecting lines or signal transmission lines with the AC rated voltage of 450/750V or below, has better thermal stability, and can maintain good electrical performance and flexibility in high temperature, low temperature and corrosivity, the flat cable is produced by standard organization, is suitable for mobile electrical equipment with the AC rated voltage of 450V/70V or below, is particularly suitable for frequently-bent occasions without kinking, is folded tidily, can meet the requirements of various occasions if traveling, and is suitable for electrical connection among mobile electrical equipment in severe environments such as power generation, metallurgy, chemical engineering, harbors and the like.

The outer protective sheath that all is rubber materials of current cable, at the in-process of using, if the external world receives comparatively serious friction or striking, outside protective sheath will receive wearing and tearing, and serious meeting is broken, can not protect inside cable, probably still can have the danger of electrocuteeing, and the fire behaviour of current cable is not good, leads to the cable to damage seriously.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a cable with a toughened glass outer layer, which solves the problems that the outer layer of the existing cable is a protective sleeve made of rubber, and if the outside is seriously rubbed or impacted in the using process, the outer protective sleeve is abraded, seriously broken and incapable of protecting the inner cable, and the electric shock danger possibly exists, and the flame retardant property of the existing cable is poor, so that the cable is seriously damaged.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a cable with toughened glass is outer, includes the protective layer, the inner wall of protective layer has fire-retardant layer through the adhesive bonding to the inner wall on fire-retardant layer is provided with the sheath, the inside of sheath is provided with the cable core, it has the filling layer to fill in the space that fire-retardant layer and sheath formed to the quantity of cable core has four, the inside of sheath and the middle part that is located the cable core are provided with the enhancement core, be provided with around the covering between filling layer and the cable core to the surface of protective layer has the toughened glass layer through the adhesive bonding.

Preferably, a woven layer is arranged inside the wrapping layer, and polypropylene materials are filled between the inner wall of the wrapping layer and the surface of the cable core.

Preferably, the cable core comprises a conductor, a first insulating layer is arranged on the surface of the conductor, a braided mesh layer is bonded on the surface of the first insulating layer through an adhesive, a filler is arranged between the braided mesh layer and the side, opposite to the first insulating layer, of the first insulating layer, a shielding layer is bonded on the surface of the braided mesh layer through an adhesive, a second insulating layer is bonded on the surface of the shielding layer through an adhesive, and the first insulating layer and the second insulating layer are both made of modified silicone rubber.

Preferably, the inside of shielding layer is provided with the shielding rope to the inside of shielding layer is seted up with the filling groove of shielding rope looks adaptation, the material of shielding rope can be the rope made of hemp, and the shielding layer is woven by the tinned copper wire and is formed.

Preferably, the filler is made of jute which is the most common filler material, the braided net layer is made of a structure woven by metal shielding wires, such as a copper wire braid, so that the flexibility of the cable is better, and mainly as a shielding structure, the conductor is formed by stranding ultrafine soft copper monofilaments, and the stranded copper monofilaments are externally braided with copper wires to form a braided conductor.

Preferably, the average thickness of the protective layer is five millimeters, the thickness of the thinnest part of the protective layer is five millimeters, the sheath is made of a copolyether ester elastomer, the filler of the filling layer is a basalt fiber filament-doped PP flame-retardant filling rope, the outer diameters of the basalt fiber filament and the PP flame-retardant filling rope are consistent, the flame-retardant layer is made of polyethylene, composite flame-retardant powder, a cross-linking agent, an antioxidant, polyethylene wax and zinc stearate, the flame-retardant layer is put into a high-speed stirring machine, and the flame-retardant layer is put into a screw extruder for extrusion granulation.

Preferably, the reinforcing core is formed by stranding a plurality of single-strand aramid tows, such as 7, 8 and 9, and the first and second insulating layers may be tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer layers. The tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer may be a known material, and the first insulating layer and the second insulating layer may be formed by a continuous extrusion molding process.

Advantageous effects

The invention provides a cable with an outer layer of toughened glass. Compared with the prior art, the method has the following beneficial effects:

(1) the cable with the toughened glass outer layer comprises a protective layer, wherein a flame-retardant layer is bonded on the inner wall of the protective layer through an adhesive, a sheath is arranged on the inner wall of the flame-retardant layer, a cable core is arranged inside the sheath, a filling layer is filled in a gap formed by the flame-retardant layer and the sheath, the number of the cable cores is four, a reinforcing core is arranged inside the sheath and in the middle of the cable core, a wrapping layer is arranged between the filling layer and the cable core, a toughened glass layer is bonded on the surface of the protective layer through the adhesive, the cable core comprises a conductor, a first insulating layer is arranged on the surface of the conductor, a braided net layer is bonded on the surface of the first insulating layer through the adhesive, a filler is arranged between the braided net layer and one side opposite to the first insulating layer, a shielding layer is bonded on the surface of the braided, the first insulating layer and the second insulating layer are both made of modified silicon rubber, the material of the filler can be the most common filler material jute, the material of the woven net layer is a structure formed by weaving metal shielding wires, for example, copper wires are woven, the flexibility of the cable is better, the conductor is mainly used as a shielding structure and is stranded by superfine soft copper monofilaments, the copper wires are woven outside the stranded copper monofilaments to form a woven conductor, toughened glass is used as the outer layer of the cable, the hardness degree of the outer layer of the cable is improved, the protection strength of the cable can be improved, the cable can not be exposed outside under the condition of friction or impact, the occurrence of electric shock can be prevented, and the use safety of the cable is improved.

(2) The cable with the toughened glass outer layer is characterized in that the average thickness of the protective layer is five millimeters, the thickness of the thinnest part of the protective layer is five millimeters, the sheath is made of a copolyether ester elastomer, the filler of the filling layer is a flame-retardant PP filling rope doped with basalt fiber yarns, the basalt fiber yarns and the flame-retardant PP filling rope are consistent in outer diameter, the flame-retardant layer is made of polyethylene, composite flame-retardant powder, a cross-linking agent, an antioxidant, polyethylene wax and zinc stearate and is put into a high-speed stirrer and a screw extruder to be extruded and granulated, the reinforcing core is formed by twisting a plurality of single-stranded aramid fiber tows, such as 7, 8 and 9, and the first insulating layer and the second insulating layer can be tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer layers. The tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer can be made of known materials, the first insulating layer and the second insulating layer can be formed by a continuous extrusion molding process, the flame retardant layer is arranged, the overall flame retardant performance of the cable can be enhanced, and the insulation performance of the cable can be improved due to the arrangement of the first insulating layer and the second insulating layer inside the cable.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic structural view of a cable core according to the present invention;

fig. 3 is a schematic structural diagram of the shielding layer of the present invention.

In the figure: 1-protective layer, 2-flame-retardant layer, 3-sheath, 4-cable core, 41-conductor, 42-first insulating layer, 43-woven net layer, 44-filler, 45-shielding layer, 46-second insulating layer, 47-shielding rope, 48-filling groove, 5-filling layer, 6-reinforced core, 7-wrapping layer, 8-toughened glass layer, 9-woven layer and 10-polypropylene material.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a cable with a toughened glass outer layer comprises a protective layer 1, wherein the average thickness of the protective layer 1 is five millimeters, the thickness of the thinnest part is five millimeters, a sheath 3 is made of a copolyether ester elastomer, fillers of a filling layer 5 are PP flame-retardant filling ropes doped with basalt fiber yarns, the outer diameters of the basalt fiber yarns and the PP flame-retardant filling ropes are the same, a flame-retardant layer 2 is made of polyethylene, composite flame-retardant powder, a cross-linking agent, an antioxidant, polyethylene wax and zinc stearate and is put into a high-speed stirrer and put into a screw extruder for extrusion granulation, the flame-retardant layer 2 is bonded on the inner wall of the protective layer 1 through an adhesive, the sheath 3 is arranged on the inner wall of the flame-retardant layer 2, a cable core 4 is arranged inside the sheath 3, the cable core 4 comprises a conductor 41, a first insulating layer 42 is arranged on the surface of the conductor 41, and a woven net, a filler 44 is arranged between the opposite side of the braided mesh layer 43 and the first insulating layer 42, the filler 44 can be jute which is the most common filler material, the material of the braided mesh layer 43 is a structure formed by braiding metal shielding wires, such as copper wire braiding, so that the flexibility of the cable is better, the cable is mainly used as a shielding structure, the conductor 41 is stranded by ultrafine soft copper monofilaments, the stranded copper monofilaments are braided with copper wires to form a braided conductor, the surface of the braided mesh layer 43 is bonded with a shielding layer 45 through an adhesive, a shielding rope 47 is arranged inside the shielding layer 45, a filling groove 48 matched with the shielding rope 47 is arranged inside the shielding layer 45, the shielding rope 47 can be hemp rope, the shielding layer 45 is braided by tinned copper wires, the surface of the shielding layer 45 is bonded with a second insulating layer 46 through an adhesive, and the first insulating layer 42 and the second insulating layer 46 are both made of modified silicone rubber, the filling layer 5 is filled in the gap formed by the flame-retardant layer 2 and the sheath 3, the number of the cable cores 4 is four, the reinforcing core 6 is arranged in the middle of the cable cores 4 inside the sheath 3, the reinforcing core 6 is formed by twisting a plurality of single-strand aramid tows, such as 7, 8 and 9, and the first insulating layer 42 and the second insulating layer 46 can be tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer layers. The tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer can adopt a known material, the first insulating layer 42 and the second insulating layer 46 can adopt a continuous extrusion molding process, the wrapping layer 7 is arranged between the filling layer 5 and the cable core 4, the surface of the protective layer 1 is bonded with the toughened glass layer 8 through an adhesive, the woven layer 9 is arranged inside the wrapping layer 8, the polypropylene material 10 is filled between the inner wall of the wrapping layer 8 and the surface of the cable core 4, and the content which is not described in detail in the specification belongs to the prior art which is known to the technical personnel in the field.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cable with an outer layer of toughened glass, comprising a protective layer (1), characterized in that: the inner wall of protective layer (1) has fire-retardant layer (2) through the adhesive bonding to the inner wall of fire-retardant layer (2) is provided with sheath (3), the inside of sheath (3) is provided with cable core (4), it has filling layer (5) to fill in the space that fire-retardant layer (2) and sheath (3) formed, and the quantity of cable core (4) has four, the inside of sheath (3) and the middle part that is located cable core (4) are provided with strengthens core (6), be provided with between filling layer (5) and cable core (4) around covering (7) to the surface of protective layer (1) has toughened glass layer (8) through the adhesive bonding.

2. A cable having an outer layer of toughened glass according to claim 1 wherein: a woven layer (9) is arranged inside the wrapping layer (8), and polypropylene materials (10) are filled between the inner wall of the wrapping layer (8) and the surface of the cable core (4).

3. A cable having an outer layer of toughened glass according to claim 1 wherein: the cable core (4) comprises a conductor (41), a first insulating layer (42) is arranged on the surface of the conductor (41), a woven net layer (43) is bonded on the surface of the first insulating layer (42) through an adhesive, a filler (44) is arranged between the woven net layer (43) and the side opposite to the first insulating layer (42), a shielding layer (45) is bonded on the surface of the woven net layer (43) through the adhesive, a second insulating layer (46) is bonded on the surface of the shielding layer (45) through the adhesive, and the first insulating layer (42) and the second insulating layer (46) are both made of modified silicone rubber.

4. A cable having an outer layer of toughened glass according to claim 3 wherein: the inside of shielding layer (45) is provided with shielding rope (47) to the inside of shielding layer (45) is seted up with filling groove (48) of shielding rope (47) looks adaptation, the material of shielding rope (47) can be the hemp rope, and shielding layer (45) are woven by the tinned copper wire and are formed.

5. A cable having an outer layer of toughened glass according to claim 3 wherein: the filler (44) can be the most common filler material jute, the material of the braided net layer (43) is a structure formed by braiding metal shielding wires, such as copper wire braiding, so that the flexibility of the cable is better, and mainly as a shielding structure, the conductor (41) is stranded by superfine soft copper monofilaments, and the stranded copper monofilaments are braided with copper wires to form a braided conductor.

6. A cable having an outer layer of toughened glass according to claim 1 wherein: the protective layer (1) is five millimeters in average thickness, five millimeters in thickness at the thinnest position, the sheath (3) is made of copolyether ester elastomer, the filler of the filling layer (5) is a basalt fiber filament-doped PP flame-retardant filling rope, the basalt fiber filament and the PP flame-retardant filling rope are consistent in outer diameter, and the flame-retardant layer (2) is made of polyethylene, composite flame-retardant powder, a cross-linking agent, an antioxidant, polyethylene wax and zinc stearate which are put into a high-speed mixer and a screw extruder for extrusion granulation.

7. A cable having an outer layer of toughened glass according to claim 1 wherein: the reinforced core (6) is formed by stranding a plurality of single-strand aramid tows, such as 7, 8 and 9, and the first insulating layer (42) and the second insulating layer (46) can be tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer layers. The tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer can adopt a known material, and the first insulating layer (42) and the second insulating layer (46) can adopt a continuous extrusion molding process.