CN207124061U - A kind of environment-friendly type anti-interference computer cable - Google Patents

Abstract

The utility model provides an environment-friendly anti-interference computer cable, which includes a cable core and an outer sheath; the cable core includes two sets of conductor assemblies arranged in parallel; A combined conductor, the outer side of the conductor is covered with an insulating layer and an inner shielding layer in sequence; the sheathing layer includes an insulating layer, an outer shielding layer, a flame retardant layer and a polyolefin outer sheath arranged in sequence from the inside to the outside. The cable provided by the utility model has very excellent shielding performance. Each conductor component is provided with a shielding layer separately, and has a three-level shielding structure, which has a strong anti-interference ability. The transmission signal is disordered, and the normal and stable operation of the equipment is always guaranteed. Moreover, the polyolefin outer sheath and the setting of the flame-retardant layer are adopted, which has good flame-retardant effect and good environmental protection.

Description

An environment-friendly anti-jamming computer cable

technical field

The utility model relates to the technical field of cable design and manufacture, in particular to an environment-friendly anti-interference computer cable.

Background technique

With the rapid development of the national economy, computer cables are used more and more widely. It is extremely important that computer cables can transmit power normally and stabilize signals when used in different occasions. However, due to structural reasons, the shielding effect of existing computer cables is average. If the cable is used in a special occasion or subject to strong electromagnetic interference, and the cable’s anti-interference ability is not strong, it is easy to cause disordered transmission signals, misoperation of equipment, and even major accidents. . Moreover, the existing computer cables are poor in environmental protection and are easily bitten by animals, causing damage.

Contents of the invention

The utility model aims at overcoming the defects in the above-mentioned prior art, and proposes an environment-friendly anti-jamming computer cable.

The technical scheme of the utility model is achieved in that:

An environment-friendly anti-jamming computer cable, including a cable core and an outer sheath; the cable core includes two sets of conductor assemblies arranged in parallel; The outside of the conductor is covered with an insulating layer and an inner shielding layer in turn; the sheath includes an insulating layer, an outer shielding layer, a flame-retardant layer and a polyolefin outer sheath arranged in sequence from the inside to the outside, and the conductor is made of oxygen-free Copper wires are twisted, the flame retardant layer is made of double-layer wrapping of halogen-free glass fiber tape, the insulating layer adopts a three-layer co-extruded skin-foam-skin physical foam structure, and the conductor assembly and The insulating layer is filled with ethylene propylene rubber elastomer material.

Further, both the conductor shielding layer and the inner shielding layer are braided layers of graphene fibers.

Further, the outer shielding layer is made of mixed braided tinned copper wire and aramid fiber wire.

Adopt above-mentioned technical scheme, the beneficial effect of the utility model is:

The cable provided by the utility model has very excellent shielding performance. Shielding layers are provided on the outside of each conductor in the conductor assembly, outside the conductor assembly, and on the outside of the cable core. In special occasions or when subjected to strong electromagnetic interference, it will not cause disturbance of the transmission signal, and always ensure the normal and stable operation of the equipment. Moreover, the polyolefin outer sheath and the setting of the flame-retardant layer have good flame-retardant effect and good environmental protection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the utility model provided with a central reinforcement.

in:

1-conductor shielding layer; 2-conductor; 3-insulating layer; 4-inner shielding layer; 5-insulating layer; 6-outer shielding layer; 7-flame retardant layer; 8-polyolefin outer sheath; 9-non-woven Cloth belt; 10-ratproof armor layer; 11-reinforcement.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

An environment-friendly anti-interference computer cable, as shown in Figure 1 and Figure 2, includes a cable core and an outer sheath; the cable core includes two sets of conductor assemblies arranged in parallel; the conductor assembly includes a conductor shielding layer 1 And the conductor 2 twisted inside it, the outside of the conductor 2 is covered with an insulating layer 3 and an inner shielding layer 4 in turn; the sheath includes an insulating layer 5, an outer shielding layer 6, Flame retardant layer 7 and polyolefin outer sheath 8.

In an optional embodiment, at least two reinforcements can also be arranged symmetrically in the cable core, and the reinforcements are arranged along the length direction of the cable core. Specifically, the reinforcements can be made of hemp rope or carbon fiber. pieces. To improve the tensile capacity of the cable.

The above-mentioned conductor 2 is made of twisted oxygen-free copper wire, which has good flexibility and stable and reliable signal transmission. The flame-retardant layer 7 above is made of double-layer wrapping of halogen-free glass fiber tape, and the flame-retardant layer is wrapped with double-layer wrapping of halogen-free glass fiber tape with an oxygen index greater than 50, which not only has high flame-retardant properties, but also improves the resistance of the cable. At the same time, it can also play a very good role in preventing rodents and insects from biting.

The above-mentioned insulating layer 5 adopts a three-layer co-extruded skin-foam-skin physical foaming structure. The inner and outer skin layers of the insulating layer are both made of vulcanized ceramic rubber sheaths. Specifically, the vulcanized ceramic rubber is made by vulcanizing ceramics at high temperature, and The rubber is compounded together to further improve the insulation performance of the cable and its good resistance to compression and impact. The foam layer is a polyurethane foam layer, which can increase the cable insulation resistance, reduce the transmission attenuation of the cable, reduce the working capacitance of the cable, and the cable has high safety and reliability.

Ethylene-propylene rubber elastomer material is filled between the above-mentioned conductor assembly and the insulating layer. The cable not only has good shielding effect and high mechanical strength, but also has high resilience, which ensures that the cable is not easily deformed, and has outstanding compression and impact resistance.

Both the conductor shielding layer 1 and the inner shielding layer 4 are braided layers of graphene fibers. The above-mentioned outer shielding layer 6 is made of mixed braided tinned copper wire and aramid fiber wire, which has certain structural strength and impact resistance. Specifically, the tinned copper wires in the outer shielding layer are preferably tinned copper wires with a diameter of 0.1mm-0.15mm, and the coverage of the tinned copper wires in the braided shielding layer is 50%-60%.

Each conductor assembly has a separate shielding layer, plus the outer shielding layer, which is equivalent to setting a three-level shielding layer structure, which makes the cable shielding performance excellent and the cable anti-interference ability is extremely strong. It will cause the transmission signal to be disordered and ensure the normal and stable operation of the equipment.

In an optional embodiment, a non-woven fabric tape 9 may also be provided inside the polyolefin outer sheath 8, so that the cable has strong tensile strength, high temperature resistance, good safety, and low manufacturing cost. The non-woven fabric tape is overlapped and wrapped on the outside of the flame-retardant layer, and its overlapping rate is ≥ 20%. In addition, a layer of anti-rat armor layer 10 can also be arranged between the flame-retardant layer and the outer shielding layer, which is wrapped with overlapping metal tapes, and the overlapping rate is between 30% and 50%, which not only ensures that it has good protection effect without affecting the softness of the cable already laid.

The cable provided by the utility model has very excellent shielding performance. Shielding layers are provided on the outside of each conductor in the conductor assembly, outside the conductor assembly, and on the outside of the cable core. In special occasions or when subjected to strong electromagnetic interference, it will not cause disturbance of the transmission signal, and always ensure the normal and stable operation of the equipment. Moreover, the polyolefin outer sheath and the setting of the flame-retardant layer have good flame-retardant effect and good environmental protection.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (3)

1. An environment-friendly anti-jamming computer cable, characterized in that: comprise a cable core and the outer sheath thereof; said cable core comprises two groups of conductor assemblies arranged in parallel; said conductor assembly comprises a conductor shielding layer and its inner mutual A stranded conductor, the outside of the conductor is covered with an insulating layer and an inner shielding layer in sequence; the sheath includes an insulating layer, an outer shielding layer, a flame-retardant layer and a polyolefin outer sheath arranged in sequence from the inside to the outside, The conductor is twisted with oxygen-free copper wires, the flame-retardant layer is double-wrapped with halogen-free glass fiber tape, and the insulating layer is a three-layer co-extruded skin-foam-skin physical foam structure , between the conductor assembly and the insulating layer is filled with ethylene-propylene rubber elastomer material. 2. An environment-friendly anti-jamming computer cable according to claim 1, characterized in that: both the conductor shielding layer and the inner shielding layer are braided layers of graphene fibers. 3. An environment-friendly anti-jamming computer cable according to claim 1, characterized in that: the outer shielding layer is made of tinned copper wire and aramid fiber mixed.