CN216849385U - Outdoor low-voltage cable - Google Patents

Abstract

The utility model discloses an outdoor low-voltage cable which comprises a wear-resistant layer, wherein a strength layer wraps the inner wall of the wear-resistant layer, a heat dissipation layer wraps the inner wall of the strength layer, a filling layer is arranged on the inner wall of the heat dissipation layer, four insulation shielding layers distributed in an annular array are wrapped inside the filling layer, insulation layers wrap the inner walls of the four insulation shielding layers, the four insulation layers are distributed in an annular array, shielding layers wrap the inner walls of the four insulation layers, the four shielding layers are distributed in an annular array, and conductors wrap the inner walls of the four shielding layers. According to the outdoor low-voltage cable, the abrasion resistance of the surface of the cable can be improved through the abrasion-resistant layer, the cable is prevented from being abraded by the outside, the surface strength of the cable can be improved through the strength layer, the cable is prevented from being damaged due to the outside pressure, the heat dissipation effect of the cable can be improved through the heat dissipation layer, and the cable is prevented from being damaged due to overhigh temperature.

Description

Outdoor low-voltage cable

Technical Field

The utility model relates to the field of low-voltage cables, in particular to an outdoor low-voltage cable.

Background

The cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the generalized electric wire and cable is also called as cable for short, and the narrowly defined cable is insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation.

The existing low-voltage cable has the following disadvantages: 1. most of the existing low-voltage cables have poor wear resistance, and the cables are easily worn and damaged by the outside for a long time; 2. most of the existing low-voltage cables are low in strength, and the cables are easy to crack when encountering external impact; 3. most of the existing low-voltage cables have poor heat dissipation effect and short service life.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an outdoor low-voltage cable which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides an outdoor low-voltage cable, includes the wearing layer, the inner wall parcel of wearing layer has the intensity layer, the inner wall parcel of intensity layer has the heat dissipation layer, the inner wall on heat dissipation layer is provided with the filling layer, the inside parcel of filling layer has four insulation shield that are the distribution of circular array, four insulation shield's inner wall all wraps up there is the insulating layer, four the insulating layer is circular array and distributes, four the inner wall of insulating layer all wraps up shielding layer, four the shielding layer is circular array and distributes, four the conductor is all wrapped up by the inner wall of shielding layer, four the conductor is circular array and distributes.

Preferably, the wear-resistant layer comprises a nylon layer, the outer surface of the nylon layer is wrapped with an aromatic polyamide layer, and the outer surface of the aromatic polyamide layer is wrapped with a light-resistant agent layer.

Preferably, the strength layer comprises a glass fiber reinforced nylon layer, the inner wall of the glass fiber reinforced nylon layer is wrapped with a metal net layer, and the inner wall of the metal net layer is wrapped with a polycarbonate layer.

Preferably, the metal net layer is of a net structure, and the glass fiber reinforced nylon layer is fixedly connected with the nylon layer.

Preferably, the heat dissipation layer comprises a nano carbon powder heat dissipation coating, a heat conduction silica gel sheet layer is arranged on the outer surface of the nano carbon powder heat dissipation coating, and a halogenated butyl rubber layer is arranged on the outer surface of the heat conduction silica gel sheet layer.

Preferably, the inner wall of the nano carbon powder heat dissipation coating is in contact with the filling layer.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the outdoor low-voltage cable, the wear resistance of the surface of the cable can be improved by arranging the wear-resistant layer, the cable is prevented from being worn by the outside, the aromatic polyamide layer has good wear resistance and stable working chemical performance, and has good resistance to weak acid, weak base and most organic solvents, and the aromatic polyamide layer can be prevented from being reduced in strength when exposed to the sun by arranging the light-resistant agent layer;

2. According to the outdoor low-voltage cable, the surface strength of the cable can be improved by arranging the strength layer, the cable is prevented from being damaged by external pressure, the glass fiber reinforced nylon layer has the advantages of high strength, high rigidity, high notch impact strength, good short-term heat resistance and fatigue resistance and the like, and the polycarbonate layer has the advantages of high strength, good elasticity coefficient, high impact strength, good fatigue resistance, good dimensional stability and the like;

3. according to the outdoor low-voltage cable, the heat dissipation effect of the cable can be improved by arranging the heat dissipation layer, the cable is prevented from being damaged due to overhigh temperature, when the temperature is dissipated from the conductor, the nano carbon powder heat dissipation coating can absorb the heat and transmit the heat to the heat conduction silica gel layer, the heat conduction silica gel layer transmits the heat to the halogenated butyl rubber layer, and then the halogenated butyl rubber layer absorbs and dissipates the heat, so that the service life of the cable is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of an outdoor low-voltage cable according to the present invention;

fig. 2 is a cross-sectional view of a wear layer of an outdoor low voltage cable of the present invention;

fig. 3 is a cross-sectional view of a strength layer of an outdoor low-voltage cable according to the present invention;

Fig. 4 is a cross-sectional view of a heat dissipation layer of an outdoor low voltage cable of the present invention.

In the figure: 1. a wear resistant layer; 2. a strength layer; 3. a heat dissipation layer; 4. a filling layer; 5. an insulating shield layer; 6. An insulating layer; 7. a shielding layer; 8. a conductor; 11. a light resistant agent layer; 12. an aromatic polyamide layer; 13. a nylon layer; 21. a glass fiber reinforced nylon layer; 22. a metal mesh layer; 23. a polycarbonate layer; 31. a halogenated butyl rubber layer; 32. a thermally conductive silicone sheet layer; 33. nanometer carbon powder heat dissipation coating.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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 should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "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 meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1-4, an outdoor low-voltage cable, including wearing layer 1, the inner wall parcel of wearing layer 1 has intensity layer 2, the inner wall parcel of intensity layer 2 has heat dissipation layer 3, the inner wall of heat dissipation layer 3 is provided with filling layer 4, the inside parcel of filling layer 4 has four insulation shielding layers 5 that are the distribution of annular array, the inner wall of four insulation shielding layers 5 all wraps up insulating layer 6, four insulating layers 6 are the distribution of annular array, the inner wall of four insulating layers 6 all wraps up shielding layer 7, four shielding layers 7 are the distribution of annular array, the inner wall of four shielding layers 7 all wraps up conductor 8, four conductor 8 are the distribution of annular array.

The wear-resistant layer 1 comprises a nylon layer 13, an aromatic polyamide layer 12 wraps the outer surface of the nylon layer 13, a light-resistant agent layer 11 wraps the outer surface of the aromatic polyamide layer 12, the nylon layer 13, the aromatic polyamide layer 12 and the light-resistant agent layer 11 can improve the wear resistance of the surface of the cable, and the cable is prevented from being worn by the outside.

Intensity layer 2 includes glass fiber reinforcement nylon layer 21, and the inner wall parcel of glass fiber reinforcement nylon layer 21 has metal mesh layer 22, and metal mesh layer 22's inner wall parcel has polycarbonate layer 23, and glass fiber reinforcement nylon layer 21, metal mesh layer 22 and the common cooperation of polycarbonate layer 23 can improve the surface strength of cable, avoid the cable to receive external pressure and damage.

The metal net layer 22 is of a net structure, the glass fiber reinforced nylon layer 21 is fixedly connected with the nylon layer 13, and the metal net layer 22 is used for improving the overall tensile strength.

The heat dissipation layer 3 comprises a nano carbon powder heat dissipation coating layer 33, a heat conduction silica gel sheet layer 32 is arranged on the outer surface of the nano carbon powder heat dissipation coating layer 33, a halogenated butyl rubber layer 31 is arranged on the outer surface of the heat conduction silica gel sheet layer 32, the halogenated butyl rubber layer 31, the heat conduction silica gel sheet layer 32 and the nano carbon powder heat dissipation coating layer 33 are matched together to improve the surface strength of the cable, and the cable is prevented from being damaged due to external pressure.

The inner wall of the nano carbon powder heat dissipation coating 33 is in contact with the filling layer 4, and the nano carbon powder heat dissipation coating 33 has high heat conductivity coefficient and heat dissipation effect.

It should be noted that the utility model is an outdoor low-voltage cable, the wear-resisting layer 1 can improve the wear resistance of the cable surface to prevent the cable from being worn by the outside, the aromatic polyamide layer 12 has good wear resistance, the aromatic polyamide layer 12 also has good heat resistance and insulation property, and the working chemical property is stable, and has good resistance to weak acid, weak base and most organic solvents, the light-resisting agent layer 11 can prevent the aromatic polyamide layer 12 from becoming low in strength when exposed to the sun, the strength layer 2 can improve the surface strength of the cable to prevent the cable from being damaged by the outside pressure, the glass fiber reinforced nylon layer 21 has the advantages of high strength, high rigidity, high notch impact strength, good short-term heat resistance and fatigue resistance, and the like, and can still maintain good mechanical properties in high-temperature and high-humidity environment, polycarbonate layer 23 has high strength and elasticity coefficient is good, high impact strength, good and the dimensional stability advantage such as good with the size stability of fatigue resistance, can improve the radiating effect of cable self through setting up heat dissipation layer 3, avoid the cable to damage because of the high temperature, when the temperature distributes away from conductor 8, nanometer carbon powder heat dissipation coating 33 can absorb the heat and give heat conduction silica gel layer 32, heat conduction silica gel layer 32 gives heat transfer to halogenated butyl rubber layer 31 again, then halogenated butyl rubber layer 31 absorbs the heat and distributes away again, the life of cable has been improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. An outdoor low-voltage cable, comprising a wear layer (1), characterized in that: the inner wall parcel of wearing layer (1) has intensity layer (2), the inner wall parcel of intensity layer (2) has heat dissipation layer (3), the inner wall of heat dissipation layer (3) is provided with filling layer (4), the inside parcel of filling layer (4) has four insulation shielding layer (5) that are the distribution of annular array, four the inner wall of insulation shielding layer (5) all wraps up has insulating layer (6), four insulating layer (6) are the distribution of annular array, four the inner wall of insulating layer (6) all wraps up has shielding layer (7), four shielding layer (7) are the distribution of annular array, four the inner wall of shielding layer (7) all wraps up conductor (8), four conductor (8) are the distribution of annular array.

2. An outdoor low voltage cable according to claim 1, wherein: the wear-resistant layer (1) comprises a nylon layer (13), the outer surface of the nylon layer (13) is wrapped with an aromatic polyamide layer (12), and the outer surface of the aromatic polyamide layer (12) is wrapped with a light-resistant agent layer (11).

3. An outdoor low voltage cable according to claim 2, wherein: the strength layer (2) comprises a glass fiber reinforced nylon layer (21), a metal mesh layer (22) wraps the inner wall of the glass fiber reinforced nylon layer (21), and a polycarbonate layer (23) wraps the inner wall of the metal mesh layer (22).

4. An outdoor low voltage cable according to claim 3, wherein: the metal mesh layer (22) is of a mesh structure, and the glass fiber reinforced nylon layer (21) is fixedly connected with the nylon layer (13).

5. An outdoor low voltage cable according to claim 1, wherein: the heat dissipation layer (3) comprises a nanometer carbon powder heat dissipation coating (33), a heat conduction silica gel sheet layer (32) is arranged on the outer surface of the nanometer carbon powder heat dissipation coating (33), and a halogenated butyl rubber layer (31) is arranged on the outer surface of the heat conduction silica gel sheet layer (32).

6. An outdoor low voltage cable according to claim 5, wherein: the inner wall of the nano carbon powder heat dissipation coating (33) is in contact with the filling layer (4).

Images