CN215815303U - Anti-aging communication cable - Google Patents

Abstract

The utility model discloses an anti-aging communication cable which comprises a wire core pair, a sheath and an anti-aging layer, wherein the wire core pair comprises two twisted wire cores, each wire core comprises a conductor and an insulating layer, the insulating layer is coated on the periphery of the conductor, the four wire core pairs are arranged in the sheath, and the anti-aging layer is coated on the periphery of the sheath. The ageing resistance layer that this disclosure set up can deal with complicated various environment of laying, can effectively avoid the damage that causes the sheath because of effects such as high temperature, ultraviolet ray, has prolonged this disclosure communication cable's life.

Description

Anti-aging communication cable

Technical Field

The utility model relates to the technical field of cables, in particular to an anti-aging communication cable.

Background

The wire and cable is a wire product used for transmitting electric (magnetic) energy, information and realizing electromagnetic energy conversion. The electric wire cable in a broad sense is also called as a cable for short, and the cable in a narrow sense refers to an insulated cable which is composed of the following parts: one or more insulated wire cores, and their respective possible coatings, total protective layers and outer protective layers. The communication cable is a cable for transmitting telephone, telegraph, fax document, television and radio program, data and other electric signals, and is formed by twisting more than one pair of mutually insulated wires; the method has various laying modes such as overhead, direct burial, pipeline and underwater; the cable is divided into symmetrical, coaxial and comprehensive cables according to the structure; the communication cable has wider transmission frequency band, larger communication capacity and small external interference, but is not easy to overhaul.

In the prior art, the outer sheath of the communication cable is usually made of polyvinyl chloride (PVC), which has the advantages of flame retardancy, high chemical resistance, and good mechanical strength and electrical insulation, and thus is widely applied to the outer sheath of the communication cable. However, the communication cable has complex and various laying scenes, and in the case of severe weather environments, the outer sheath made of polyvinyl chloride (PVC) is prone to brittle and cracking aging, so that the service life of the product is greatly shortened. In view of the above, the present inventors have studied and designed an anti-aging communication cable.

SUMMERY OF THE UTILITY MODEL

The anti-aging communication cable achieves the anti-aging purpose by arranging the anti-aging layer on the periphery of the wire core, can fully deal with complicated and various laying environments, and prolongs the service life of the communication cable.

The utility model provides an anti-aging communication cable, including sinle silk pair, sheath and anti-aging layer, the sinle silk pair includes two sinle silks of transposition each other, the sinle silk includes conductor and insulating layer, the insulating layer cladding is in the periphery of conductor, four the sinle silk is to locating in the sheath, anti-aging layer cladding is in the periphery of sheath, just anti-aging layer with contact surface between the sheath is equipped with concave-convex structure, can increase the cohesion of anti-aging layer on the sheath, prevents that anti-aging layer from droing. The ageing resistance layer that this disclosure set up can deal with complicated various environment of laying, can effectively avoid the damage that causes the sheath because of effects such as high temperature, ultraviolet ray, has prolonged this disclosure communication cable's life.

According to at least one embodiment of the present disclosure, the aging resistant layer is one or several of a lead stearate layer, an amine-based layer, and a ketoamine-based layer. The anti-aging layer or layers can be arranged according to the specific conditions of the laying environment, so that anti-aging protection with different strength levels can be provided.

According to at least one embodiment of the present disclosure, the communication cable further includes a cross-shaped frame, the cross-shaped frame is disposed in the sheath, and the four pairs of wire cores are respectively disposed in four quadrants of the cross-shaped frame. The cross-shaped framework enables the communication cable to maintain a stable line pair position, reduces crosstalk and keeps impedance stable.

According to at least one embodiment of the present disclosure, the communication cable further includes a wire casing, and the four wire casings are respectively disposed in the inner cavity of the sheath and are mutually matched with the end portion of the cross-shaped framework. The wire casing that this disclosure set up can be so that cross skeleton position maintains in fixed position, prevents the off normal back, and the line is to causing the influence.

According to at least one embodiment of the present disclosure, the communication cable further includes a water resistant layer disposed between the pair of cores and the jacket. The waterproof layer that this disclosure set up has good waterproof ability, can effectively prevent inside water or moisture invade the sinle silk.

According to at least one embodiment of the present disclosure, the water-blocking layer includes a first water-blocking layer and a second water-blocking layer, the first water-blocking layer covers the periphery of the wire core pair, and the second water-blocking layer is disposed on the inner side of the sheath. This disclosure has increased this disclosed effect of blocking water through setting up two-layer water blocking layer greatly.

According to at least one embodiment of the present disclosure, the communication cable further includes a braided layer disposed between the second water resistant layer and the jacket. The braided layer is braided by adopting metal wires, copper wires or steel wires, and the steel wires can provide mechanical protection and bear longitudinal tensile breaking force; the copper wire can provide the shielding effect of electromagnetic interference resistance, contacts with the ground wire or acts as the ground wire, can reflect the electric leakage condition in time, and provides the shielding effect of safety protection.

According to at least one embodiment of the present disclosure, the communication cable further includes a shielding layer provided inside the second water-resistant layer. The shielding layer provided by the present disclosure adopts a metal aluminum foil, and provides reliable external crosstalk resistance.

According to at least one embodiment of the present disclosure, the communication cable further includes a tear cord disposed between the braid and the jacket. The tearing rope arranged in the utility model can enable the operator to peel the wire pair in the utility model more quickly and conveniently.

According to at least one embodiment of the present disclosure, air bubbles are distributed within the insulating layer. The present disclosure further improves the electrical insulation properties of the present disclosure with distributed gas bubbles.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of an anti-aging communication cable according to the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present disclosure includes a wire core pair 1, a cross frame 2, a sheath 3 and an anti-aging layer 4, wherein the wire core pair 1 includes two wire cores 11 twisted with each other, the wire core 11 includes a conductor 111 and an insulating layer 112, the insulating layer 112 covers the periphery of the conductor 111, the conductor 111 preferably adopts annealed oxygen-free copper, the diameter of the conductor is preferably 0.49-0.65mm, and the conductor can cover the requirements of five types of communication cables to eight types of communication cables; the cross framework 2 is arranged in the sheath 3, the four groups of wire core pairs 1 are respectively arranged in four quadrants of the cross framework 3, and the cross framework 2 enables the communication cable to maintain a stable wire pair position, thereby reducing crosstalk and keeping impedance stable; the colors of the four groups of wire core pairs 1 are respectively white blue/blue, white orange/orange, white green/green and white brown/brown; sheath 3 adopts polyvinyl chloride PVC or low smoke and zero halogen material LSZH, and ageing resistance layer 4 cladding is in the periphery of sheath 3, and the contact surface between ageing resistance layer 4 and the sheath 3 is equipped with concave-convex structure, can increase the cohesion of ageing resistance layer 4 on sheath 3, prevents that ageing resistance layer from droing. The ageing resistance layer that this disclosure set up can deal with complicated various environment of laying, can effectively avoid the damage that causes the sheath because of effects such as high temperature, ultraviolet ray, has prolonged this disclosure communication cable's life.

The aging resistant layer 4 of the present disclosure is one or more of a lead stearate layer, an amine-based layer, and a ketoamine-based layer. The anti-aging layer or layers can be arranged according to the specific conditions of the laying environment, so that anti-aging protection with different strength levels can be provided.

The communication cable further comprises a water-blocking layer 5, wherein the water-blocking layer 5 has good waterproof capacity and can effectively prevent water or moisture from invading the inside of the wire core; the water-resistant layer 5 comprises a first water-resistant layer 51 and a second water-resistant layer 52, the first water-resistant layer 51 is coated on the periphery of the wire core pair 1, and the second water-resistant layer 52 is arranged on the inner side of the sheath 3. This disclosure has increased this disclosed effect of blocking water through setting up two-layer water blocking layer greatly.

The communication cable of the present disclosure further comprises a braid 6, the braid 6 being disposed between the second water-resistant layer 52 and the jacket 3. The braided layer 6 is braided by adopting metal wires, copper wires or steel wires, and the steel wires can provide mechanical protection and bear longitudinal tensile breaking force; the copper wire can provide the shielding effect of electromagnetic interference resistance, contacts with the ground wire or acts as the ground wire, can reflect the electric leakage condition in time, and provides the shielding effect of safety protection.

The communication cable of the present disclosure further includes a shielding layer 7, and the shielding layer 7 is provided inside the second water blocking layer 52. The shielding layer 7 provided by the present disclosure adopts a metal aluminum foil, and provides reliable external crosstalk resistance.

The communication cable further comprises wire slots (not shown), wherein the four wire slots are respectively arranged on the inner side of the shielding layer 7 and are matched with the end parts of the cross-shaped framework 2. The wire casing that this disclosure set up can be so that cross skeleton position maintains in fixed position, prevents the off normal back, and the line is to causing the influence.

The communication cable of the present disclosure further includes a tear cord 8, the tear cord 8 being disposed between the braid 6 and the jacket 3. The tearing rope 8 arranged in the utility model can enable the operator to peel the wire pair in the utility model more quickly and conveniently.

Air bubbles are distributed within the insulating layer 112 of the present disclosure. The present disclosure further improves the electrical insulation properties of the present disclosure with distributed gas bubbles.

The anti-aging protective sleeve can be laid in a scene with a severe environment, the specially designed anti-aging layer can prevent the protective sleeve from aging, and the service life of the anti-aging protective sleeve is prolonged; the waterproof layer has good waterproof capability and can effectively prevent water or moisture from invading the wire core; the shielding layer can provide reliable anti-alien crosstalk performance; the braid can provide mechanical protection and bear the longitudinal tensile strength or can provide electromagnetic interference shielding.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (10)

1. The anti-aging communication cable is characterized by comprising a wire core pair, a sheath and an anti-aging layer, wherein the wire core pair comprises two wire cores which are mutually twisted, each wire core comprises a conductor and an insulating layer, the insulating layer is coated on the periphery of the conductor, the wire core pair is arranged in the sheath, the anti-aging layer is coated on the periphery of the sheath, and a concave-convex structure is arranged on a contact surface between the anti-aging layer and the sheath.

2. The communication cable according to claim 1, wherein the aging resistant layer is one or more of a lead stearate layer, an amine-based layer, and a ketoamine-based layer.

3. The communication cable of claim 1, further comprising a cross-frame disposed within the jacket, wherein four of the wire core pairs are disposed within four quadrants of the cross-frame, respectively.

4. The communication cable of claim 3, further comprising wire slots, four of said wire slots being disposed in said interior cavity of said sheath and cooperating with said ends of said cruciform baffle.

5. The communication cable of claim 1, further comprising a water-resistant layer disposed between the pair of cores and the jacket.

6. The communication cable of claim 5, wherein the water-resistant layer comprises a first water-resistant layer surrounding the wire core pair and a second water-resistant layer disposed inside the jacket.

7. The communication cable of claim 6, further comprising a braided layer disposed between the second water resistant layer and the jacket.

8. The communication cable of claim 6 further comprising a shield layer disposed inside the second layer of water-resistant material.

9. The communication cable of claim 7, further comprising a tear cord disposed between the braid and the jacket.

10. The communication cable of claim 1 wherein the interior of the insulating layer is interspersed with air bubbles.

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