CN216671228U

CN216671228U - Double-layer co-extrusion type cable

Info

Publication number: CN216671228U
Application number: CN202122869098.2U
Authority: CN
Inventors: 郑俊科
Original assignee: Changsha Sixin Electromechanical Co ltd
Current assignee: Changsha Sixin Electromechanical Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-06-03
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a double-layer co-extrusion type wire and cable, which comprises a waterproof insulating outer layer, wherein a flame-retardant layer is arranged on the inner side of the waterproof insulating outer layer, and a signal shielding layer is arranged on the inner side of the flame-retardant layer; through the tensile overcoat that sets up in the inboard of signal shielding layer, insulating protection inlayer and insulating layer, the tensile overcoat uses PVC rubber materials preparation, can make the double-deck crowded electric wire of coextruding easily warp the use of buckling, prevent that external pressure from causing the destruction to the double-deck crowded electric wire of coextruding of inside, the insulating protection inlayer can use the polyethylene material preparation, reach insulating protection's effect to the double-deck crowded electric wire of coextruding of inside, the insulating layer can prevent that the heat that the double-deck crowded electric wire of coextruding gived from giving off is too much absorbed by outer, prevent to cause the outer chemical reaction that produces because the heat is too high, can reach the double-deck electric wire of coextruding of protection and the outer effect of protection like this.

Description

Double-layer co-extrusion type cable

Technical Field

The utility model belongs to the technical field of wires and cables, and particularly relates to a double-layer co-extrusion type cable.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it 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.

However, most cables are protected by simple inner and outer insulating layers, so that although the electric leakage condition of the internal wires is reduced, the protection on the water resistance and the fire resistance of the wires is reduced, and the wires and the cables cannot achieve better safety, so that a double-layer co-extrusion type cable is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provide a double-layer co-extrusion cable to solve the problem that most cables proposed in the background art are protected by inner and outer simple insulating layers, so that although the electric leakage condition of internal wires is reduced, the protection on the water resistance and the fire resistance of wires is reduced, and the wires and cables cannot achieve better safety.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a double-deck crowded formula cable altogether, includes waterproof insulation skin, waterproof insulation skin's inboard is provided with fire-retardant layer, the inboard on fire-retardant layer is provided with the signal shielding layer, the inboard on signal shielding layer is provided with the tensile overcoat, the inboard of tensile overcoat is provided with the insulation protection inlayer, the inboard of insulation protection inlayer is provided with the insulating layer.

Preferably, the waterproof insulating outer layer is made of polypropylene materials, and the thickness of the waterproof insulating outer layer is 1.5mm to 2 mm.

Preferably, the flame-retardant layer is made of polyvinyl chloride material, and the thickness of the flame-retardant layer is 1.5mm to 2 mm.

Preferably, the signal shielding layer is woven by a tinned copper wire, and the thickness of the signal shielding layer is 0.5mm to 1 mm.

Preferably, the tensile outer sleeve is made of PVC rubber materials, and the thickness of the tensile outer sleeve is 0.7mm to 1 mm.

Preferably, the insulating protection inner layer is made of polyethylene materials, and the thickness of the insulating protection inner layer is 0.5mm to 0.7 mm.

Preferably, the thermal-insulating layer is made of aerogel materials, and the thickness of the thermal-insulating layer is 0.3mm to 0.5 mm.

Compared with the prior art, the utility model provides a double-layer co-extrusion type cable which has the following beneficial effects:

1. according to the utility model, the waterproof insulating outer layer is arranged and can be made of a polypropylene material, and the waterproof insulating outer layer has the advantages of no toxicity, no odor, small density, good strength, rigidity and hardness and heat resistance, can reach the use standard of wires and cables, has good electrical property and high-frequency insulation property, is not influenced by humidity, can achieve a better insulating and waterproof effect, is convenient to use as a shell of a double-layer co-extrusion wire, and achieves the effect of protecting an inner main body;

2. according to the utility model, the flame-retardant layer and the signal shielding layer are arranged on the inner side of the waterproof insulating outer layer, and the flame-retardant layer can be made of polyvinyl chloride and has the advantages of flame retardance, high chemical resistance, and good mechanical strength and electrical insulation, so that the flame-retardant layer can be used as the flame-retardant layer, the signal shielding layer can prevent a magnetic field emitted by the double-layer co-extruded wire from leaking outwards, the interference influence on the use of other wires and cables is prevented, and the effect of protecting the double-layer co-extruded wire is achieved;

3. according to the utility model, the tensile outer sleeve, the insulating protection inner layer and the heat insulation layer are arranged on the inner side of the signal shielding layer, the tensile outer sleeve is made of PVC rubber materials, the double-layer co-extruded electric wire can be easily deformed, bent and used, the double-layer co-extruded electric wire in the insulating protection inner layer can be prevented from being damaged by external pressure, the insulating protection inner layer can be made of polyethylene materials, the insulating protection effect on the double-layer co-extruded electric wire in the insulating protection inner layer can be achieved, the heat insulation layer can prevent the heat emitted by the double-layer co-extruded electric wire from being absorbed by the outer layer too much, the chemical reaction of the outer layer due to the too high heat can be prevented, and the effects of protecting the double-layer co-extruded electric wire and protecting the outer layer can be achieved.

The device has the advantages that the structure is scientific and reasonable, the use is safe and convenient, and great help is provided for people.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

fig. 1 is a schematic perspective view of a double-layer co-extruded cable according to the present invention;

fig. 2 is a schematic cross-sectional view of a double-layer co-extruded cable according to the present invention;

fig. 3 is a schematic view of a cross-sectional exploded perspective structure of a double-layer co-extruded cable according to the present invention;

FIG. 4 is a schematic axial view of a double-layer co-extruded cable according to the present invention;

in the figure: waterproof insulating outer layer 1, double-deck crowded electric wire 2 altogether, fire-retardant layer 3, signal shielding layer 4, tensile overcoat 5, insulating protection inlayer 6, insulating layer 7.

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. 1-4, the present invention provides a technical solution: the utility model provides a double-deck crowded formula cable altogether, includes waterproof insulation skin 1, and waterproof insulation skin 1's inboard is provided with fire-retardant layer 3, and fire-retardant layer 3's inboard is provided with signal shielding layer 4, and signal shielding layer 4's inboard is provided with tensile overcoat 5, and the inboard of tensile overcoat 5 is provided with insulating protection inlayer 6, and the inboard of insulating protection inlayer 6 is provided with insulating layer 7.

In the utility model, preferably, the waterproof insulating outer layer 1 is made of polypropylene material, the thickness of the waterproof insulating outer layer 1 is 1.5mm to 2mm, and the waterproof insulating outer layer 1 can be made of polypropylene material, so that the waterproof insulating outer layer has the advantages of no toxicity, no odor, small density, good strength, rigidity, hardness and heat resistance, can reach the use standard of wires and cables, has good electrical property and high-frequency insulating property, is not influenced by humidity, and can achieve better insulating and waterproof effects.

In the present invention, it is preferable that the flame retardant layer 3 is a polyvinyl chloride material, the thickness of the flame retardant layer 3 is 1.5mm to 2mm, and polyvinyl chloride used for the flame retardant layer 3 has advantages of a flame retardant value of 40 or more, high chemical resistance, and good mechanical strength and electrical insulation.

In the utility model, preferably, the signal shielding layer 4 is woven by tinned copper wires, the thickness of the signal shielding layer 4 is 0.5mm to 1mm, and the signal shielding layer 4 can prevent the magnetic field emitted by the double-layer co-extruded wire 2 from leaking outwards and prevent interference from influencing the use of other wires and cables.

In the utility model, preferably, the tensile outer sleeve 5 is made of PVC rubber material, the thickness of the tensile outer sleeve 5 is 0.7mm to 1mm, and the tensile outer sleeve 5 is made of PVC rubber material, so that the double-layer co-extruded electric wire 2 can be easily deformed and bent for use.

In the utility model, preferably, the insulating protection inner layer 6 is made of polyethylene material, the thickness of the insulating protection inner layer 6 is 0.5mm to 0.7mm, and the insulating protection inner layer 6 is made of polyethylene material, so that the insulating protection effect on the internal double-layer co-extrusion electric wire 2 is achieved.

In the utility model, preferably, the heat insulation layer 7 is made of aerogel materials, the thickness of the heat insulation layer 7 is 0.3mm to 0.5mm, and the heat insulation layer 7 can prevent the heat emitted by the double-layer co-extruded wire 2 from being absorbed by the outer layer too much and prevent the outer layer from generating chemical reaction due to too high heat.

The working principle and the using process of the utility model are as follows: when in use, firstly, the waterproof insulating outer layer 1 is arranged, the waterproof insulating outer layer 1 can be made of polypropylene materials, and has the advantages of no toxicity, no smell, small density, good strength, rigidity and hardness and heat resistance, the use standard of wires and cables can be achieved, the waterproof cable has good electrical property and high-frequency insulation property and is not influenced by humidity, a good insulating and waterproof effect can be achieved, the waterproof cable can be conveniently used as a shell of a double-layer co-extrusion wire 2, then, through the flame-retardant layer 3 and the signal shielding layer 4 which are arranged on the inner side of the waterproof insulating outer layer 1, the flame-retardant layer 3 can be made of polyvinyl chloride, has the flame-retardant value of more than 40, has high chemical resistance and good mechanical strength and electrical insulation property, and therefore, the waterproof cable can be used as the flame-retardant layer 3, the signal shielding layer 4 can prevent the magnetic field emitted by the double-layer co-extrusion wire 2 from leaking outwards, and prevent interference from influencing the use of other wires and cables, reach the effect of protection double-deck crowded electric wire 2 altogether, inboard at signal shielding layer 4 is provided with tensile overcoat 5, insulating protection inlayer 6 and insulating layer 7, tensile overcoat 5 uses the preparation of PVC rubber materials, can make double-deck crowded electric wire 2 of coextruding easily warp the use of buckling, prevent that external pressure from leading to the fact destruction to inside double-deck crowded electric wire 2 altogether, insulating protection inlayer 6 can use the preparation of polyethylene material, reach insulating protection's effect to inside double-deck crowded electric wire 2 of coextruding, insulating layer 7 can prevent that the heat that double-deck crowded electric wire 2 of coextruding gived from giving off is too much absorbed by the skin, prevent to cause the skin to produce chemical reaction because the heat is too high, can protect outer effect like this, can reach waterproof and fireproof's effect, also can reach better protective effect to double-deck crowded electric wire 2 altogether.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck crowded formula cable altogether, includes waterproof insulation skin (1), its characterized in that: the inboard of waterproof insulation skin (1) is provided with fire-retardant layer (3), the inboard of fire-retardant layer (3) is provided with signal shielding layer (4), the inboard of signal shielding layer (4) is provided with tensile overcoat (5), the inboard of tensile overcoat (5) is provided with insulating protection inlayer (6), the inboard of insulating protection inlayer (6) is provided with insulating layer (7).

2. The double-layer co-extruded cable according to claim 1, wherein: the waterproof insulating outer layer (1) is made of polypropylene materials, and the thickness of the waterproof insulating outer layer (1) is 1.5 mm-2 mm.

3. The double-layer co-extruded cable according to claim 1, wherein: the flame-retardant layer (3) is made of polyvinyl chloride materials, and the thickness of the flame-retardant layer (3) is 1.5 mm-2 mm.

4. The double-layer co-extruded cable according to claim 1, wherein: the signal shielding layer (4) is woven by tinned copper wires, and the thickness of the signal shielding layer (4) is 0.5mm to 1 mm.

5. The double-layer co-extruded cable according to claim 1, wherein: the tensile outer sleeve (5) is made of PVC rubber materials, and the thickness of the tensile outer sleeve (5) is 0.7mm to 1 mm.

6. The double-layer co-extruded cable according to claim 1, wherein: the insulating protection inner layer (6) is made of polyethylene materials, and the thickness of the insulating protection inner layer (6) is 0.5 mm-0.7 mm.

7. The double-layer co-extruded cable according to claim 1, wherein: the heat insulation layer (7) is made of aerogel materials, and the thickness of the heat insulation layer (7) is 0.3 mm-0.5 mm.