CN212990718U - Environment-friendly insulated non-sheath cable - Google Patents

Abstract

The utility model discloses an environment-friendly insulated non-sheath cable, which comprises an insulated cable tube and a plurality of cable cores arranged inside the insulated cable tube; the cable core includes main copper pole and sets up the inoxidizing coating on main copper pole, the inoxidizing coating includes the aluminium foil shielding layer, the flame retardant coating, steel band armor and insulating glue layer, the cladding of aluminium foil shielding layer is on the surface of cable core, the flame retardant coating laminates with the aluminium foil shielding layer, the steel band armor overlaps the surface at the flame retardant coating, insulating glue layer sets up in the outside, it is lower to have the insulating type cable armor protective layer tensile strength of environmental protection among the prior art to have solved, the external force of bearing is big inadequately, the armor protective layer shielding effect is poor, can not be used for the problem of the serious occasion of electromagnetic interference.

Description

Environment-friendly insulated non-sheath cable

Technical Field

The utility model relates to a cable field, concretely relates to insulating no sheath cable of environment-friendly.

Background

With the development of society, people have more and more demands on communication and power transmission, and therefore, various electric wires and cables are widely used in various industries and play an indispensable role in life, and a cable is a power or signal transmission device, which is generally made of several wires or groups of wires, one or more mutually insulated conductors and an outer insulating protective layer, and is a cable-like cable formed by twisting several wires or groups of wires, wherein each group of wires is insulated from each other and is often wound around a center, and the whole outer surface is coated with a highly insulating coating layer, and the cable has the characteristics of internal electrification and external insulation.

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

In order to prevent the power cable from being damaged by machinery, an armored cable is formed by covering an armored protective layer on the outer layer of the power cable. The purpose of the cable and the armor layer is to enhance the tensile strength, the compressive strength and other mechanical protection and prolong the service life, and more importantly, the cable anti-interference performance is improved through shielding protection, and short circuit caused by damage to a wire core after the sheath of the cable is smashed, pressed and extruded can be prevented. The armored cable is mainly used for temperature measurement, signal transmission and special heating of chemical engineering, metallurgical machinery manufacturing, power generation, scientific experiments and the like, and the problems that an environment-friendly insulating cable armored protective layer is low in tensile strength, insufficient in borne external force and poor in shielding effect and cannot be used in occasions with serious electromagnetic interference exist in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an insulating unsheathed cable of environment-friendly has solved and has had the insulating type cable armor protective layer tensile strength of environment-friendly among the prior art lower, and the external force of bearing is big enough, and the armor protective layer shielding effect is poor, can not be used for the problem of the serious occasion of electromagnetic interference.

In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly insulated unsheathed cable comprises an insulated cable tube and a plurality of cable cores arranged inside the insulated cable tube;

the cable core includes main copper pole and sets up the inoxidizing coating on main copper pole, the inoxidizing coating includes aluminium foil shielding layer, flame retardant coating, steel band armor and insulating glue film, the aluminium foil shielding layer cladding is in the surface of cable core, the flame retardant coating with the laminating of aluminium foil shielding layer, the steel band armor cover is in the surface of flame retardant coating, insulating glue film sets up in the outside.

Preferably, a plurality of strands of copper wires are further wound on the cable core.

Preferably, the center position department of insulating cable pipe is provided with anti-brace, just anti-brace and a plurality of the cable core laminating.

Preferably, the thickness of the aluminum foil shielding layer and the fire-proof layer is 2-3 mm.

Preferably, the thickness of the steel tape armor layer and the insulating glue layer is 4-5 mm.

Preferably, the insulating glue layer is a crosslinked polyethylene insulating layer.

Preferably, the fireproof layer is a ceramic silica gel fireproof belt and is corrugated.

Preferably, a gap between the insulating cable tube and the cable core is filled with solid sponge.

The utility model has the advantages that: the utility model comprises an insulating cable tube and a plurality of cable cores arranged inside the insulating cable tube; the cable core includes main copper pole and sets up the inoxidizing coating on main copper pole, the inoxidizing coating includes the aluminium foil shielding layer, the flame retardant coating, steel band armor and insulating glue layer, the cladding of aluminium foil shielding layer is on the surface of cable core, flame retardant coating and the laminating of aluminium foil shielding layer, the steel band armor cover is on the surface of flame retardant coating, insulating glue layer sets up in the outside, through setting up the aluminium foil shielding layer, the flame retardant coating, steel band armor and insulating glue layer have good compressive property and mechanical properties, good fire-retardant fire resistance has simultaneously, can use in comparatively abominable environment, it is lower to have environmental protection insulating type cable armor protective layer tensile strength among the prior art to have solved, the external force of bearing is big inadequately, armor protective layer shielding effect is poor, can not be used for the problem of the.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the structure of an environment-friendly insulated unsheathed cable.

In the figure: 1. an insulated cable tube; 2. a cable core; 3. a main copper rod; 4. a copper wire; 5. an aluminum foil shielding layer; 6. a fire barrier layer; 7. a steel tape armor layer; 8. an insulating glue layer; 9. and (4) resisting the pulling strip.

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.

Referring to fig. 1, an environment-friendly insulated unsheathed cable comprises an insulated cable tube 1 and a plurality of cable cores 2 arranged inside the insulated cable tube 1, wherein the insulated cable tube 1 plays a primary protection role in the insulated cable tube 1;

the cable core 2 includes main copper pole 3 and sets up the inoxidizing coating on main copper pole 3, the inoxidizing coating includes aluminium foil shielding layer 5, flame retardant coating 6, steel band armor 7 and insulating cement layer 8, the cladding of aluminium foil shielding layer 5 is on the surface of cable core 2, flame retardant coating 6 and the laminating of aluminium foil shielding layer 5, steel band armor 7 covers the surface at flame retardant coating 6, insulating cement layer 8 sets up in the outside, the parcel can effectually improve the anti-jamming performance of cable on cable core 2 aluminium foil shielding layer, flame retardant coating 6 parcel prevents to produce the heat when the cable transmits electricity on aluminium foil shielding layer 5 and catches fire, the fire prevention heat resistance of cable has been improved, steel band armor 7 has improved the resistance to compression and the tensile strength of cable, insulating layer 8 is located the outside and plays insulating effect, prevent that the mutual contact takes place the short circuit between the cable.

Wherein, still twine on the cable core 2 and have a plurality of strands of copper wires 4, can improve the transmission of electricity performance of cable like this greatly.

Wherein, the central point department of putting of insulating cable pipe 1 is provided with anti brace 9, and tensile strip 9 and the laminating of a plurality of cable cores 2, and tensile strip 9 sets up the tensile ability that has further improved the cable in insulating cable pipe 1 is inside.

The thickness of the aluminum foil shielding layer 5 and the thickness of the fireproof layer 6 are 2-3mm, and the thickness of the steel tape armor layer 7 and the thickness of the insulating glue layer 8 are 4-5mm, so that the design requirement can be met, and meanwhile, the production cost can be reduced.

The insulating layer glue 8 is a crosslinked polyethylene insulating layer, and the insulating property of the crosslinked polyethylene is good.

Wherein, flame retardant coating 6 is ceramic silica gel fire-resistant area, and flame retardant coating 6 is the fold form, can effectively improve fire behavior like this.

Wherein, the solid sponge is filled in the gap between the insulating cable tube 1 and the cable core 2, thus effectively improving the compression resistance of the cable.

The utility model discloses theory of operation and use flow: during the use, the edge cable pipe 1 plays a preliminary protective role to the inside, the aluminum foil shielding layer wrapped on the cable core 2 can effectively improve the anti-interference performance of the cable, the fireproof layer 6 is wrapped on the aluminum foil shielding layer 5 to prevent heat from being generated during cable power transmission, the fireproof heat-resistant performance of the cable is improved, the steel strip armor layer 7 improves the compression resistance and the tensile resistance of the cable, the insulating layer 8 is positioned on the outermost side to play an insulating role, the short circuit caused by mutual contact between the cable cores 2 is prevented, the brace 9 is arranged inside the insulating cable pipe 1 to further improve the tensile resistance of the cable, and the problems that in the prior art, the environment-friendly insulating type cable armor protective layer has lower tensile strength, the borne external force is not large enough, the shielding effect of the armor protective layer is poor, and the environment-friendly insulating type cable armor protective layer cannot.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. An environment-friendly insulated unsheathed cable is characterized by comprising an insulated cable tube (1) and a plurality of cable cores (2) arranged inside the insulated cable tube (1);

cable core (2) are including main copper pole (3) and set up the inoxidizing coating on main copper pole (3), the inoxidizing coating includes aluminium foil shielding layer (5), flame retardant coating (6), steel band armor (7) and insulating glue layer (8), aluminium foil shielding layer (5) cladding is in the surface of cable core (2), flame retardant coating (6) with aluminium foil shielding layer (5) laminating, steel band armor (7) cover is in the surface of flame retardant coating (6), insulating glue layer (8) set up in the outside.

2. The environment-friendly insulated unsheathed cable according to claim 1, wherein the cable core (2) is further wound with a plurality of strands of copper wires (4).

3. The environment-friendly insulated unsheathed cable according to claim 1, wherein a tension-resistant strip (9) is arranged at the center of the insulated cable tube (1), and the tension-resistant strip (9) is attached to the plurality of cable cores (2).

4. The environment-friendly insulated unsheathed cable according to claim 1, wherein the thickness of the aluminum foil shielding layer (5) and the fire-proof layer (6) is 2-3 mm.

5. The environment-friendly insulated unsheathed cable according to claim 1, wherein the thickness of the steel tape armor layer (7) and the insulating glue layer (8) is 4-5 mm.

6. The environment-friendly insulated unsheathed cable according to claim 1, wherein the insulating glue layer (8) is a crosslinked polyethylene insulating layer.

7. The environment-friendly insulated unsheathed cable according to claim 1, wherein the fire-proof layer (6) is a ceramic silica gel fire-resistant tape, and the fire-proof layer (6) is corrugated.

8. The environment-friendly insulated unsheathed cable according to claim 1, wherein a gap between the insulated cable tube (1) and the cable core (2) is filled with solid sponge.

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