CN212516681U

CN212516681U - High-reliability monitoring signal line

Info

Publication number: CN212516681U
Application number: CN202021715054.3U
Authority: CN
Inventors: 芮黎春
Original assignee: Wuxi City Pu Cao Technology Co ltd
Current assignee: Wuxi City Pu Cao Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-02-09
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a high-reliability monitoring signal line, which comprises a wire core, a polyester tape layer, an aluminum-plastic composite tape longitudinal covering layer, a total shielding layer, a PE inner sheath layer, a reinforcing layer and an outer sheath layer, wherein the polyester tape layer, the aluminum-plastic composite tape longitudinal covering layer, the total shielding layer, the PE inner sheath layer, the reinforcing layer and the outer sheath layer are sequentially wrapped outside the wire core; the cable core comprises a plurality of twisted pairs and split-phase shielding layers wrapped on the outer sides of the twisted pairs; the adjacent twisted pairs have different twisting pitches, each pair of twisted pairs comprises two insulated wires, each insulated wire comprises a conductor and high-density polyethylene insulating layers with different colors extruded outside the conductor, and the monitoring signal wire is good in shielding effect and high in strength.

Description

High-reliability monitoring signal line

Technical Field

The utility model relates to a monitoring signal cable field especially relates to a high reliability monitoring signal line.

Background

The original monitoring signal line basically adopts RVV or RVVP cable, the structural product can not simultaneously meet the market requirement and simultaneously provide video, audio, monitoring and other signal inputs, and the interference among various signals is large. The conventional HPVV 10 × 2 × 0.5 monitoring signal line has low power-on voltage and low current, and is easily interfered in the signal transmission process, different line pairs of the HPVV are used for transmitting different signal sources, and are also easily interfered with each other, so that crosstalk, unclear images and the like are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's shortcoming, providing a high reliability monitor signal line that shielding effect is good, intensity is high.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

a high-reliability monitoring signal line comprises a wire core, and a polyester tape layer, an aluminum-plastic composite tape longitudinal cladding layer, a total shielding layer, a PE inner sheath layer, a reinforcing layer and an outer sheath layer which are sequentially wrapped on the outer side of the wire core; the cable core comprises a plurality of twisted pairs and split-phase shielding layers wrapped on the outer sides of the twisted pairs; the adjacent twisted pairs have different twisting pitches, each pair of twisted pairs comprises two insulated wires, and each insulated wire comprises a conductor and high-density polyethylene insulating layers with different colors extruded outside the conductor.

Preferably, petroleum jelly is filled between the polyester tape layer and the wire core.

Preferably, the split-phase shielding layer is a composite aluminum foil wrapping layer, and the overlapping rate is less than 45% and greater than or equal to 25%.

Preferably, the total shielding layer is a copper wire braided shielding layer, and the braiding density is not less than 85%.

Preferably, the reinforcing layer is a fine galvanized steel wire braid layer, and the weaving density is not less than 80%.

Preferably, the outer sheath is formed by extruding low-smoke halogen-free flame-retardant polyolefin sheath materials.

The utility model has the advantages that:

firstly, the method comprises the following steps: a plurality of twisted pairs are arranged and are respectively used for different signal transmission, and the twisting pitches of adjacent twisted pairs are different, so that mutual interference among the twisted pairs is avoided;

secondly, the method comprises the following steps: the outer sides of each pair of twisted wires are respectively wrapped with a split-phase shielding layer to prevent the twisted wires from interfering with each other; the outer sides of all the wire cores are wrapped with a total shielding layer to prevent the interference of external electromagnetic waves;

thirdly, the method comprises the following steps: the aluminum-plastic composite belt longitudinal cladding layer and the total shielding layer are arranged, so that the shielding effect is ensured;

fourthly: the reinforcing layer is formed by weaving thin galvanized steel wires, the outer diameter of the weaving is small, the bending is easy, the strength is high, and the situation that the signal transmission interruption is influenced due to the fact that the television signal wire swings to break under the outdoor strong wind environment condition can be avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 100 is a wire core, 110 is an insulated wire, 110.1 is a conductor, 110.2 is a polyethylene insulating layer, 120 is a split-phase shielding layer, 200 is a polyester tape layer, 300 is an aluminum-plastic composite tape longitudinal cladding layer, 400 is a total shielding layer, 500 is a PE inner sheath layer, 600 is a reinforcing layer, 700 is an outer sheath layer, and 800 is petroleum jelly.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.

A high-reliability monitoring signal line comprises a wire core 100, a polyester tape layer 200, an aluminum-plastic composite tape longitudinal cladding layer 300, a total shielding layer 400, a PE inner sheath layer 500, a reinforcing layer 600 and an outer sheath layer 700, wherein the polyester tape layer 200, the aluminum-plastic composite tape longitudinal cladding layer 300, the total shielding layer 400, the PE inner sheath layer 500, the reinforcing layer 600 and the outer sheath layer 700 are sequentially wrapped outside the wire; the cable core 100 comprises a plurality of twisted pairs and split-phase shielding layers 120 wrapped on the outer sides of each pair of twisted pairs, the number of the twisted pairs is preferably five, and the number of the twisted pairs can be increased or decreased according to actual requirements; the adjacent twisted pairs have different twisting pitches, each pair of twisted pairs comprises two insulated wires 110, and each insulated wire 110 comprises a conductor 110.1 and a high-density polyethylene insulating layer 110.2 with different colors extruded outside the conductor 110.1.

Preferably, petroleum jelly 800 is filled between the polyester tape layer 200 and the wire core 100.

Preferably, the split-phase shielding layer 120 is a composite aluminum foil wrapping layer, and the overlapping rate is less than 45% and greater than or equal to 25%.

Preferably, the total shielding layer 400 is a copper wire braided shielding layer, and the braiding density is not less than 85%.

Preferably, the reinforcing layer 600 is a fine galvanized steel wire braid layer, and the braiding density is not less than 80%.

Preferably, the outer sheath 700 is formed by extruding low-smoke halogen-free flame-retardant polyolefin sheath material.

The described embodiments are only some, but not all embodiments of the invention. 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.

Claims

1. A high reliability monitor signal line which characterized in that: the cable comprises a cable core (100), and a polyester belt layer (200), an aluminum-plastic composite belt longitudinal cladding layer (300), a total shielding layer (400), a PE inner sheath layer (500), a reinforcing layer (600) and an outer sheath layer (700) which are sequentially wrapped on the outer side of the cable core (100); the cable core (100) comprises a plurality of twisted pairs and split-phase shielding layers (120) wrapped on the outer sides of the twisted pairs; the stranding pitches of the adjacent twisted pairs are different, each pair of twisted pairs comprises two insulated wires (110), and each insulated wire (110) comprises a conductor (110.1) and high-density polyethylene insulating layers (110.2) with different colors, wherein the high-density polyethylene insulating layers are extruded on the outer side of the conductor (110.1).

2. The high-reliability monitor signal line according to claim 1, wherein: petroleum jelly (800) is filled between the polyester tape layer (200) and the wire core (100).

3. The high-reliability monitor signal line according to claim 1, wherein: the split-phase shielding layer (120) is a composite aluminum foil lapping layer, and the lapping rate is less than 45% and more than or equal to 25%.

4. The high-reliability monitor signal line according to claim 1, wherein: the total shielding layer (400) is a copper wire braided shielding layer, and the braiding density is not less than 85%.

5. The high-reliability monitor signal line according to claim 1, wherein: the reinforcing layer (600) is a fine galvanized steel wire braid layer, and the weaving density is not less than 80%.

6. The high-reliability monitor signal line according to claim 1, wherein: the outer sheath layer (700) is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyolefin sheath materials.