CN212542005U

CN212542005U - High-temperature environment-friendly wire rod

Info

Publication number: CN212542005U
Application number: CN202021475477.2U
Authority: CN
Inventors: 胡歌飞
Original assignee: Dongguan Qinda Wire Co ltd
Current assignee: Dongguan Qinda Wire Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-02-12
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a high-temperature environment-friendly wire rod, which comprises a core wire, a high-temperature protective layer and a PFA insulating outer cover; the core wire is formed by twisting a plurality of strands of conductors; the high-temperature protective layer is arranged on the outer side of the conductor; the PFA insulating outer coating is arranged on the outer side of the high-temperature protective layer; the high-temperature protective layer comprises an insulating inner cover, a shielding layer, a heat insulation layer, an armor layer, a fire-resistant layer and a flame-retardant layer; the insulating inner cover, the shielding layer, the heat insulation layer, the armor layer, the fire-resistant layer and the flame-retardant layer are sequentially covered on the outer side of the conductor from inside to outside; the PFA insulating outer coating is arranged on the outer side of the flame-retardant layer. The utility model discloses can work under high temperature environment to can effectively prevent stretching of intensity of a fire when the conflagration, low cigarette, nontoxic, very safety ring protects during just burning.

Description

High-temperature environment-friendly wire rod

Technical Field

The utility model belongs to the technical field of the electric wire, concretely relates to high temperature environmental protection wire rod.

Background

The wire consists of four parts, namely a conductor, an insulating layer, a shielding layer and a protective layer, and is a wire product for transmitting electric energy and information and realizing electromagnetic energy conversion.

The existing part of wires are easy to damage when meeting high-temperature environment, and generate more toxic smog during combustion, which is not beneficial to ensuring the environment and personal safety.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem and provide a high temperature environmental protection wire rod.

The utility model discloses a realize its technological effect and the solution that adopts does:

a high-temperature environment-friendly wire rod comprises a core wire, a high-temperature protective layer and a PFA insulating outer cover; the core wire is formed by twisting a plurality of strands of conductors; the high-temperature protective layer is arranged on the outer side of the conductor; the PFA insulating outer coating is arranged on the outer side of the high-temperature protective layer.

Preferably, the high-temperature protection layer comprises an insulating inner cover, a shielding layer, a heat insulation layer, an armor layer, a fire-resistant layer and a flame-retardant layer; the insulating inner cover, the shielding layer, the heat insulation layer, the armor layer, the fire-resistant layer and the flame-retardant layer are sequentially covered on the outer side of the conductor from inside to outside; the PFA insulating outer coating is arranged on the outer side of the flame-retardant layer.

Preferably, the insulation inner quilt is made of irradiation cross-linking halogen-free low-smoke polyolefin material, and a flame retardant is added in the insulation inner quilt.

Preferably, the flame retardant is magnesium hydroxide.

Preferably, the shielding layer is woven by copper wires.

Preferably, the heat insulation layer is high-temperature-resistant glass cloth.

Preferably, the armor is a steel tape; and one side of the armor layer facing the fire-resistant layer is coated with cable fire-resistant paint.

Preferably, the fire-resistant layer is a ceramic silica gel glass fiber composite belt.

Preferably, the flame retardant layer is a mica tape.

Preferably, magnesium oxide is filled between the conductor and the gap in the insulation.

The utility model has the advantages that: the conductor is made of pure copper, is suitable for a conductor connecting wire of a high-end electrical appliance and can be connected with a low-resistance current to pass through; the insulating outer layer is made of PFA plastic, has high strength and ageing resistance, and can prolong the service life of the product to 30-50 years; the used materials do not contain harmful substances, the electric wire basically does not generate toxic gas during combustion, and the product is very safe and environment-friendly; the high-temperature protective layer is arranged, so that the product can keep working in a high-temperature environment, and the fire spread on the electric wire can be effectively reduced in case of fire.

Drawings

Fig. 1 is a schematic cross-sectional view of a high-temperature environment-friendly electric wire rod disclosed by an embodiment of the present invention.

And (3) identification and explanation: 1-PFA insulating outer coating, 2-conductor, 3-insulating inner coating, 4-shielding layer, 5-heat-insulating layer, 6-armor layer, 7-fire-resistant layer, 8-flame-retardant layer, 9-cable fireproof coating and 10-magnesium oxide.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When one element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like.

Referring to fig. 1, in a preferred embodiment of the present invention, a high temperature environment-friendly electric wire is disclosed, which includes a core wire, a high temperature protective layer and a PFA insulating outer cover 1; the core wire is formed by twisting a plurality of strands of conductors 2; the high-temperature protective layer is arranged on the outer side of the conductor 2; the PFA insulating outer coating 1 is coated on the outer side of the high-temperature protective layer.

Specifically, the high-temperature protection layer comprises an insulating inner cover 3, a shielding layer 4, a heat insulation layer 5, an armor layer 6, a fire-resistant layer 7 and a flame-retardant layer 8; the insulating inner quilt 3, the shielding layer 4, the heat insulation layer 5, the armor layer 6, the fire-resistant layer 7 and the flame-retardant layer 8 are sequentially wrapped on the outer side of the conductor 2 from inside to outside; the PFA insulating outer cover 1 is arranged outside the flame-retardant layer 8. The high-temperature protective layer can effectively protect the conductor inside the electric wire from being influenced by high temperature and can effectively prevent the spread of fire. Meanwhile, all materials of the high-temperature fireproof layer are environment-friendly materials, so that the safety and environment-friendly quality of the electric wire is guaranteed.

Specifically, the insulating inner cover 3 is made of an irradiation crosslinking halogen-free low-smoke polyolefin material and has excellent performances of high temperature resistance level, high aging temperature and the like; and the magnesium hydroxide is added in the insulating inner cover 3 as a flame retardant, so that a large amount of heat in the surrounding air can be absorbed during combustion, the temperature of a combustion site is reduced, and the flame retardant effect is achieved.

Specifically, the shielding layer 4 is formed by weaving copper wires, and the shielding effect is good.

Specifically, the heat insulation layer 5 is high-temperature-resistant glass cloth, has high-temperature resistance, chemical corrosion resistance and high insulation performance, and can absorb a large amount of heat and prevent flame from passing through and insulating air when being burnt by flame.

Specifically, the armor layer 6 is a steel belt, so that the mechanical strength of the electric wire can be improved; one side of the armor layer 6 facing the fire-resistant layer 7 is coated with cable fire-resistant paint 9, and the cable fire-resistant paint 9 can generate a uniform and compact spongy foam heat-insulating layer when being on fire, so that the spread and the propagation of flame can be effectively inhibited and blocked, and the electric wire is protected.

Specifically, the fire-resistant layer 7 is a ceramic silica gel glass fiber composite belt, is formed by compounding ceramic fireproof and fire-resistant silica gel and high-temperature-resistant glass fiber cloth serving as base materials in a rolling manner, and begins to harden at a temperature of more than 350 ℃ to form a ceramic shell, so that the hard shell can play a good role in flame retardance, fire resistance, fire prevention and fire insulation, and can reach 3000 ℃, and the safe use of the internal structure of the wire in a high-temperature environment is effectively guaranteed.

Specifically, the flame retardant layer 8 is a mica tape, and has excellent high temperature resistance and combustion resistance.

Specifically, magnesium oxide 10 is filled between the conductor 2 and the gap of the inner insulation cover 3, so that the flame-retardant cable has excellent flame-retardant performance, low smoke and no toxicity during combustion.

According to the above description, the utility model discloses can work under high temperature environment to can effectively prevent stretching of intensity of a fire when the conflagration, low cigarette, nontoxic, very safe environmental protection when just burning.

While the preferred embodiments of the present invention have been illustrated in detail in the accompanying drawings, it should be understood that the scope of the invention includes, but is not limited to, the embodiments described above; the specific structure disclosed in the drawings is only a preferred embodiment of the present invention, and those skilled in the art can also develop other embodiments on this basis, and any simple deformation or equivalent replacement without departing from the innovative concept of the present invention is covered by the present invention, which belongs to the protection scope of the present invention.

Claims

1. The utility model provides a high temperature environmental protection wire rod which characterized in that: comprises a core wire, a high-temperature protective layer and a PFA insulating outer cover; the core wire is formed by stranding a plurality of strands of pure copper conductors; the high-temperature protective layer is arranged on the outer side of the conductor; the PFA insulating outer coating is arranged on the outer side of the high-temperature protective layer.

2. The high-temperature environment-friendly wire rod as claimed in claim 1, wherein: the high-temperature protective layer comprises an insulating inner cover, a shielding layer, a heat insulation layer, an armor layer, a fire-resistant layer and a flame-retardant layer; the insulating inner cover, the shielding layer, the heat insulation layer, the armor layer, the fire-resistant layer and the flame-retardant layer are sequentially covered on the outer side of the conductor from inside to outside; the PFA insulating outer coating is arranged on the outer side of the flame-retardant layer.

3. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the insulation inner quilt is made of irradiation cross-linking halogen-free low-smoke polyolefin materials, and a flame retardant is added into the insulation inner quilt.

4. The high-temperature environment-friendly wire rod as claimed in claim 3, wherein: the flame retardant is magnesium hydroxide.

5. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the shielding layer is formed by weaving copper wires.

6. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the heat insulation layer is made of high-temperature-resistant glass cloth.

7. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the armor layer is a steel belt; and one side of the armor layer facing the fire-resistant layer is coated with cable fire-resistant paint.

8. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the fire-resistant layer is a ceramic silica gel glass fiber composite belt.

9. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: the flame-retardant layer is a mica tape.

10. The high-temperature environment-friendly wire rod as claimed in claim 2, wherein: and magnesium oxide is filled between the conductor and the gap in the insulation.