CN210039740U

CN210039740U - Flame-retardant computer shielding cable

Info

Publication number: CN210039740U
Application number: CN201920982317.8U
Authority: CN
Inventors: 王祖军
Original assignee: Anhui Jiehao Electric Co Ltd
Current assignee: Anhui Jiehao Electric Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-02-07
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a fire-retardant computer shielded cable of computer cable technical field, which comprises a cable, the outer shielding layer, the earth connection, fire-retardant filler, fire-retardant layer, the armor, insulating layer and anticorrosive protection layer, the outside of cable has the outer shielding layer around its cladding, the earth connection sets up in the space between cable and the outer shielding layer, it has fire-retardant filler to fill between cable and the outer shielding layer, the fixed cladding of outer wall of outer shielding layer has fire-retardant layer, the fixed cladding of outer wall of fire-retardant layer has the armor, the fixed cladding of outer wall of armor has the insulating layer, the fixed cladding of outer wall of insulating layer has anticorrosive protection layer this device can strengthen the shielding effect of cable, the life of extension cable, and reduce the possibility of burning and the loss that brings.

Description

Flame-retardant computer shielding cable

Technical Field

The utility model discloses a fire-retardant computer shielded cable specifically is computer cable technical field.

Background

The computer cable belongs to the cable for electric equipment, is suitable for electronic computer and automatic instrument and meter with rated voltage of 500V and below and high requirement on interference resistance, and is shielded in relatively low cost.

The existing computer cable still has the problems of insufficient flame retardant property and shielding effect and short service life, and therefore a novel flame-retardant computer shielding cable is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel fire-retardant computer shielded cable to solve the current computer cable that proposes in the above-mentioned background art and still have flame retardant property and shield the not enough and not long enough problem of life of effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant computer shielded cable, includes cable, outer shielding layer, earth connection, fire-retardant filler, fire-retardant layer, armor, insulating layer and anticorrosive protection layer, the outside of cable has outer shielding layer around its cladding, the earth connection sets up in the space between cable and the outer shielding layer, it has fire-retardant filler to fill between cable and the outer shielding layer, the fixed cladding of outer wall of outer shielding layer has fire-retardant layer, the fixed cladding of outer wall of fire-retardant layer has the armor, the fixed cladding of outer wall of armor has the insulating layer, the fixed cladding of outer wall of insulating layer has anticorrosive protection layer.

Preferably, the cable includes conductor, internal insulation layer and internal shield layer, the cable includes conductor, internal shield layer and winds the covering, the outside cladding of conductor has the internal shield layer, the outer wall cladding on internal shield layer has around the covering.

Preferably, the outside of the cable is sequentially coated with an outer shielding layer, a flame-retardant layer, an armor layer, an insulating layer and an anti-corrosion protective layer, and the allowable bending of the cable is not less than 12 times of the radius of the cable.

Preferably, the inner shielding layer and the outer shielding layer are woven by tinned copper wires.

Preferably, the flame-retardant layer is a flame-retardant polyvinyl chloride layer, and the flame-retardant filler is an aluminum hydroxide flame retardant filler.

Compared with the prior art, the beneficial effects of the utility model are that:

this device is provided with the conductor, the internal shield layer, the earth connection, fire-retardant layer, fire-retardant filler, outer shielding layer and anticorrosive coating, the outside cladding of conductor has the internal shield layer, the internal shield layer plays the shielding effect to the cable with the outer shielding layer jointly, earth connection and cable contact, improved branch shielded effect when preventing that its short circuit from causing the fire, and fire-retardant layer and fire-retardant filler's setting has promoted the fire behaviour of cable greatly, the outmost anticorrosive coating that is of cable, each layer and inside cable in the anticorrosive coating protection is not corroded, prolong its life.

Drawings

Fig. 1 is a schematic front sectional view of the flame-retardant computer shielded cable of the present invention;

fig. 2 is the utility model discloses fire-retardant computer shielded cable right side is looked the schematic diagram of section.

In the figure: 100 cables, 110 conductors, 120 inner shielding layers, 130 wrapping layers, 200 outer shielding layers, 300 grounding wires, 400 flame-retardant fillers, 500 flame-retardant layers, 600 armor layers, 700 insulating layers and 800 anticorrosion protective layers.

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.

The utility model provides a flame-retardant computer shielded cable, please refer to fig. 1 and 2, including cable 100, outer shielding layer 200, earth connection 300, flame-retardant filler 400, flame-retardant layer 500, armor 600, insulating layer 700 and anticorrosive protection layer 800;

referring to fig. 1 and 2 again, the cable 100 is externally wrapped with an outer shielding layer 200, the outer shielding layer 200 is a total shielding structure, and performs electromagnetic wave filtering on the entire cable, a ground wire 300 is disposed in a gap between the cable 100 and the outer shielding layer 200, the ground wire 300 guides the electromagnetic wave filtered by the outer shielding layer 200 to the ground, and prevents the cable 100 from being ignited due to short circuit;

referring to fig. 1, a flame retardant filler 400 is filled between the cable 100 and the outer shielding layer 200, and the flame retardant filler 400 directly inhibits the ignition of the cable 100;

referring to fig. 1 and 2, the outer wall of the outer shielding layer 200 is fixedly wrapped with a flame retardant layer 500, the flame retardant layer 500 is used for blocking an outer fire source and inhibiting an inner fire source, the outer wall of the flame retardant layer 500 is fixedly wrapped with an armor layer 600, the armor layer 600 reinforces the structure of the cable, the outer wall of the armor layer 600 is fixedly wrapped with an insulating layer 700, the inner portion and the outer portion of the insulating layer 700 are isolated and insulated by the insulating layer 700, the outer wall of the insulating layer 700 is fixedly wrapped with an anti-corrosion protection layer 800, and the anti-corrosion layer 800 protects the inner structure of the anti-corrosion layer.

When the cable is used specifically, a person in the technical field needs to wrap the outer shielding layer 200 outside the cable 100 and the grounding wire 300, the flame-retardant filler 400 is filled in a gap between the cable 100 and the outer shielding layer 200, the inner shielding layer 120 and the outer shielding layer 200 effectively filter unnecessary electromagnetic waves, the electromagnetic waves are guided into the ground through the grounding wire 300, meanwhile, the grounding wire 300 is in contact with the cable 100 to prevent the short circuit and the fire, the outer wall of the outer shielding layer 200 is wrapped with the flame-retardant layer 500, the flame-retardant filler 400 and the flame-retardant layer 500 utilize the characteristics of the materials of the flame-retardant filler and the flame-retardant layer to inhibit the fire when the cable is on fire, the outer wall of the flame-retardant layer is wrapped with the armor layer 600, the structural strength of the cable is enhanced by the armor layer 600, the insulating layer 700 isolates and insulates the inner part and the outer part of.

Referring to fig. 1, the cable 100 includes a conductor 110, an inner shielding layer 120 and a wrapping layer 130, the outer portion of the conductor 110 is wrapped with the inner shielding layer 120, the inner shielding layer 120 serves as a sub-shielding structure to compare and protect the conductor 110, the outer wall of the inner shielding layer 120 is wrapped with the wrapping layer 130, and the wrapping layer 130 is wrapped with a wrapping polyester tape or other non-hygroscopic wrapping tape to achieve a good insulating effect.

The outer part of the cable 100 is sequentially coated with an outer shielding layer 200, a flame retardant layer 500, an armor layer 600, an insulating layer 700 and an anti-corrosion protection layer 800, and the cable is allowed to bend by a radius not less than 12 times of the outer diameter of the cable.

The inner shield layer 120 and the outer shield layer 200 are woven by tinned copper wires, and the tinned copper can effectively prevent copper from being oxidized, so that the stability, the conductivity, the wear resistance, the corrosion resistance and the electromagnetic shielding performance of the tinned copper shield are better.

The flame-retardant layer 500 is a flame-retardant polyvinyl chloride layer, polyvinyl chloride has certain weather resistance and mechanical tension besides flame retardance, the flame-retardant filler 400 is an aluminum hydroxide flame retardant filler, aluminum hydroxide has high chemical property stability at normal temperature, and after being heated to 200 ℃, the aluminum hydroxide starts to absorb heat and decompose to release three crystal waters. Every gram of aluminium hydroxide absorbs heat to 878J, and when the temperature is 300 ℃, two crystal waters are lost and converted into boehmite. The combustion of the polymer is delayed in the heat absorption dehydration process, the aluminum hydroxide is equivalent to a radiator, the combustion speed is slowed down, simultaneously the released water vapor dilutes the combustion gas and participates in the reaction of a condensation phase, the heat absorption decomposition is based on the large heat absorption of the aluminum hydroxide decomposition, and only steam is released when the aluminum hydroxide decomposition is heated, so that toxic, combustible or corrosive gas cannot be generated.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the various embodiments disclosed herein can be used in any combination with one another, and the description of such combinations that is not exhaustive in this specification is merely for brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A flame-retardant computer shielded cable, characterized in that: including cable (100), outer shielding layer (200), earth connection (300), fire-retardant filler (400), fire-retardant layer (500), armor (600), insulating layer (700) and anticorrosive protection layer (800), the outside of cable (100) has outer shielding layer (200) around its cladding, earth connection (300) set up in the space between cable (100) and outer shielding layer (200), it has fire-retardant filler (400) to fill between cable (100) and outer shielding layer (200), the fixed cladding of outer wall of outer shielding layer (200) has fire-retardant layer (500), the fixed cladding of outer wall of fire-retardant layer (500) has armor (600), the fixed cladding of outer wall of armor (600) has insulating layer (700), the fixed cladding of outer wall of insulating layer (700) has anticorrosive protection layer (800).

2. A flame retardant computer shielded cable according to claim 1, wherein: cable (100) include conductor (110), internal shield layer (120) and around covering (130), the outside cladding of conductor (110) has internal shield layer (120), the outer wall cladding of internal shield layer (120) has around covering (130).

3. A flame retardant computer shielded cable according to claim 1, wherein: the cable (100) is coated with an outer shielding layer (200), a flame-retardant layer (500), an armor layer (600), an insulating layer (700) and an anti-corrosion protective layer (800) in sequence, and the allowable bending of the cable is not less than 12 times of the outer diameter of the cable.

4. A flame retardant computer shielded cable according to claim 2, wherein: the inner shielding layer (120) and the outer shielding layer (200) are woven by tinned copper wires.

5. A flame retardant computer shielded cable according to claim 1, wherein: the flame-retardant layer (500) is a flame-retardant polyvinyl chloride layer, and the flame-retardant filler (400) is an aluminum hydroxide flame retardant filler.