CN210865683U

CN210865683U - Flame-retardant cable

Info

Publication number: CN210865683U
Application number: CN201922386753.1U
Authority: CN
Inventors: 何卫华
Original assignee: Guangzhou Aokang Communication Equipment Co ltd
Current assignee: Guangzhou Aokang Communication Equipment Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-06-26
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a fire-retardant type cable, including conductor and high temperature resistant layer, the surface cladding of conductor has the shielding layer, the surface cladding of shielding layer has the insulating layer, be provided with the filling layer between the internal surface on high temperature resistant layer and the surface of insulating layer, the surface cladding on high temperature resistant layer has fire-retardant layer. The utility model discloses a set up the filling layer, good high temperature resistance and fire resistance have, thereby the flame retardant property of cable has been improved, work as outer high temperature resistant layer, fire-retardant layer and wearing layer are damaged after, make the cable can also transient use, through setting up the polyimide fiber layer, high temperature resistant fire-retardant performance has, thereby avoided the high damage that causes of outside temperature to cable inside, through setting up organosilicon high temperature resistant coating, the high temperature resistance of cable has further been improved, effectual protection has been played to the inside of cable, through setting up modified fire resistance polypropylene layer, flame retardant efficiency is obvious.

Description

Flame-retardant cable

Technical Field

The utility model relates to the technical field of cables, specifically be a fire-retardant type cable.

Background

The power cable is used for transmitting and distributing electric energy, various high-tech content detection facilities containing cables are more and more widely applied to complicated and severe places, flammable and explosive severe environments are continuously generated, unsafe factors are increased day by day, accidents are frequent, however, the existing cable has the defect of poor flame retardant effect, the service life of the cable is shortened, potential safety hazards exist, and therefore the flame retardant cable is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a fire-retardant type cable possesses the good advantage of flame retardant efficiency, has solved current cable and has had the poor defect of flame retardant efficiency, has not only reduced the life of cable, has the problem of potential safety hazard moreover.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant type cable, includes conductor and high temperature resistant layer, the surface cladding of conductor has the shielding layer, the surface cladding of shielding layer has the insulating layer, be provided with the filling layer between the internal surface on high temperature resistant layer and the surface of insulating layer, the surface cladding on high temperature resistant layer has fire-retardant layer, fire-retardant layer comprises modified fire-retardant polypropylene layer and fire-retardant nylon layer.

Preferably, the shielding layer is an aluminum foil, the insulating layer is silane crosslinked halogen-free low-smoke flame-retardant polyolefin, and the filling layer is a mica tape.

Preferably, the high temperature resistant layer consists of a polyimide fiber layer and an organic silicon high temperature resistant coating, the polyimide fiber layer is coated on the outer surface of the filling layer, and the organic silicon high temperature resistant coating is coated on the outer surface of the polyimide fiber layer.

Preferably, the modified flame-retardant polypropylene layer is coated on the outer surface of the high-temperature resistant layer, and the flame-retardant nylon layer is coated on the outer surface of the modified flame-retardant polypropylene layer.

Preferably, the outer surface of the flame-retardant layer is coated with a wear-resistant layer, and the wear-resistant layer is butyl rubber.

(III) advantageous effects

Compared with the prior art, the utility model provides a fire-retardant type cable possesses following beneficial effect:

the utility model has the advantages that the filling layer is arranged, the cable has excellent high temperature resistance and combustion resistance, thereby the flame retardant property of the cable is improved, when the outer high temperature resistant layer, the flame retardant layer and the wear-resistant layer are damaged, the cable can be used for a short time, the polyimide fiber layer is arranged, the cable has the high temperature resistance and flame retardant property, thereby the damage to the interior of the cable caused by overhigh external temperature is avoided, the high temperature resistance of the cable is further improved by arranging the organic silicon high temperature resistant coating, the effective protection is realized on the interior of the cable, the flame retardant effect is obvious by arranging the modified flame retardant polypropylene layer, the flame retardant property of the cable is further improved by arranging the flame retardant nylon layer, the cable is prevented from being damaged by easy combustion, the butyl rubber not only has excellent wear resistance but also has good flame retardant property by arranging the wear-resistant layer, the flame-retardant cable has the advantages that the flame-retardant effect is improved, the flame-retardant layer is protected, the abrasion of the flame-retardant layer is avoided, the defect that the flame-retardant effect of the existing cable is poor is overcome, the service life of the cable is prolonged, and the potential safety hazard is avoided.

Drawings

Fig. 1 is a schematic cross-sectional structure view of the cable of the present invention;

FIG. 2 is a schematic sectional view of the refractory layer of the present invention;

fig. 3 is the schematic view of the cross-sectional structure of the flame retardant layer of the present invention.

In the figure: 1. a conductor; 2. a shielding layer; 3. an insulating layer; 4. a filling layer; 5. a high temperature resistant layer; 51. a polyimide fiber layer; 52. an organosilicon high-temperature resistant coating; 6. a flame retardant layer; 61. a modified flame retardant polypropylene layer; 62. a flame retardant nylon layer; 7. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a conductor 1, shielding layer 2, insulating layer 3, filling layer 4, high temperature resistant layer 5, polyimide fibrous layer 51, organosilicon high temperature resistant coating 52, fire-retardant layer 6, modified fire-retardant polypropylene layer 61, fire-retardant nylon layer 62 and wearing layer 7 part are the parts that general standard spare or technical personnel in the field know, and its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a flame retardant cable includes a conductor 1 and a high temperature resistant layer 5, the high temperature resistant layer 5 is composed of a polyimide fiber layer 51 and an organosilicon high temperature resistant coating 52, the polyimide fiber layer 51 is coated on the outer surface of a filling layer 4, the organosilicon high temperature resistant coating 52 is coated on the outer surface of the polyimide fiber layer 51, the polyimide fiber layer 51 has high temperature resistant and flame retardant properties, thereby preventing the cable from being damaged by overhigh external temperature, the organosilicon high temperature resistant coating 52 further improves the high temperature resistant properties of the cable, effectively protects the cable, the outer surface of the conductor 1 is coated with a shielding layer 2, the outer surface of the shielding layer 2 is coated with an insulating layer 3, the filling layer 4 is arranged between the inner surface of the high temperature resistant layer 5 and the outer surface of the insulating layer 3, and the shielding layer 2 is an aluminum foil, the insulating layer 3 is silane cross-linked halogen-free low-smoke flame-retardant polyolefin, the filling layer 4 is a mica tape, and the filling layer 4 is arranged, so that the cable has excellent high-temperature resistance and combustion resistance, thereby improving the flame retardant property of the cable, when the outer high-temperature resistant layer 5, the flame retardant layer 6 and the wear-resistant layer 7 are damaged, the cable can be used for a short time, the outer surface of the high-temperature resistant layer 5 is wrapped with the flame retardant layer 6, the flame retardant layer 6 consists of a modified flame retardant polypropylene layer 61 and a flame retardant nylon layer 62, the modified flame retardant polypropylene layer is wrapped 61 on the outer surface of the high-temperature resistant layer 5, the flame retardant nylon layer 62 is wrapped on the outer surface of the modified flame retardant polypropylene layer 61, the flame retardant effect is obvious by arranging the modified flame retardant polypropylene layer 61, the flame retardant property of the cable is further improved by arranging the flame retardant nylon layer 62, the cable is prevented, the wear-resistant layer 7 is butyl rubber, and by arranging the wear-resistant layer 7, the butyl rubber not only has very good wear resistance, but also has good flame retardant property, so that the flame retardant effect is improved, the flame retardant layer 6 is protected, and the abrasion of the flame retardant layer 6 is avoided.

When the cable is used, the filling layer 4 is arranged, so that the cable has excellent high-temperature resistance and combustion resistance, the flame retardant performance of the cable is improved, when the outer high-temperature resistant layer 5, the flame retardant layer 6 and the wear-resistant layer 7 are damaged, the cable can be used for a short time, the polyimide fiber layer 51 is arranged, so that the cable has high-temperature resistance and flame retardant performance, the damage to the interior of the cable caused by overhigh external temperature is avoided, the high-temperature resistance of the cable is further improved by arranging the organic silicon high-temperature resistant coating 52, the effective protection is realized on the interior of the cable, the flame retardant effect is obvious by arranging the modified flame retardant polypropylene layer 61, the flame retardant performance of the cable is further improved by arranging the flame retardant nylon layer 62, the cable is prevented from being easily burnt and damaged, the butyl rubber not only has very good wear resistance but also has good flame retardant performance by arranging the wear-resistant layer 7, not only improved flame retardant efficiency, played the effect of protection to fire-retardant layer 6 moreover, avoided fire-retardant layer 6 wearing and tearing, solved current cable and had the defect that fire-retardant efficiency is poor, not only reduced the life of cable, had the problem of potential safety hazard moreover.

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. The utility model provides a fire-retardant type cable, includes conductor (1) and high temperature resistant layer (5), its characterized in that: the surface cladding of conductor (1) has shielding layer (2), the surface cladding of shielding layer (2) has insulating layer (3), be provided with filling layer (4) between the internal surface of high temperature resistant layer (5) and the surface of insulating layer (3), the surface cladding of high temperature resistant layer (5) has fire-retardant layer (6), fire-retardant layer (6) comprises modified fire-retardant polypropylene layer (61) and fire-retardant nylon layer (62).

2. The flame-retardant cable according to claim 1, wherein: the shielding layer (2) is an aluminum foil, the insulating layer (3) is silane cross-linked halogen-free low-smoke flame-retardant polyolefin, and the filling layer (4) is a mica tape.

3. The flame-retardant cable according to claim 1, wherein: the high-temperature-resistant layer (5) is composed of a polyimide fiber layer (51) and an organic silicon high-temperature-resistant coating (52), the polyimide fiber layer (51) is coated on the outer surface of the filling layer (4), and the organic silicon high-temperature-resistant coating (52) is coated on the outer surface of the polyimide fiber layer (51).

4. The flame-retardant cable according to claim 1, wherein: the modified flame-retardant polypropylene layer (61) is coated on the outer surface of the high-temperature-resistant layer (5), and the flame-retardant nylon layer (62) is coated on the outer surface of the modified flame-retardant polypropylene layer (61).

5. The flame-retardant cable according to claim 1, wherein: the outer surface of the flame-retardant layer (6) is coated with a wear-resistant layer (7), and the wear-resistant layer (7) is butyl rubber.