CN201256006Y - Combined coaxial electric cable - Google Patents

Abstract

The utility model discloses a combined coaxial cable, aiming to provide a combined coaxial cable with low cost, stable structure, convenient laying and excellent flame retardancy. The utility model comprises a cable single line (1), a signal line (2), an audio line (3), a power line (4) and a total sheath (10), the cable single line (1), the signal line (2) . Both the audio cable (3) and the power cable (4) are wrapped inside the overall sheath (10). The overall sheath (10) is made of low-smoke halogen-free flame-retardant insulating material, which enhances the fire-resistant performance of the product and reduces the harm to people caused by smoke and halogen gas generated in case of fire, and improves It ensures the flame retardant level of the product and the safety level of the laying site, and also plays a comprehensive role in protecting the entire cable. The utility model can be widely used in the field of wired transmission network communication.

Description

A combined coaxial cable

technical field

The utility model relates to a combined coaxial cable.

Background technique

With the development of science and technology, the electronic industry technology has also developed rapidly, and high-tech information technology is coming to people. In today's information age, various transmission media have brought great speed and convenience to people's information transmission and reception. But while enjoying the achievements of modern science and technology, it also puts forward higher requirements for our information transmission equipment.

At present, the connection lines used in the wired transmission network basically adopt the dedicated cable mode, that is, the power line, coaxial cable and audio line are all set separately. Such a connection method causes the internal connection lines to become very complicated, which is not conducive to maintenance and line management. Because the colors of the connecting lines on the market are not uniform, and the maintenance lengths reserved for each line during laying are inconsistent, resulting in inconsistent indoor appearance, and the construction and laying costs are also greatly increased. When these connecting lines are produced in the factory, they must be produced separately, which increases the production cost and also increases the customer's procurement cost. Moreover, in the current production field, ordinary polyvinyl chloride materials are generally used as the sheath for the sheath, and such a sheath has poor flame retardancy. These are the existing deficiencies in the prior art.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a combined coaxial cable with low cost, stable structure, convenient laying and excellent flame retardant performance.

The technical solution adopted by the utility model is: the utility model includes a single cable, a signal line, an audio line, a power supply line and a total sheath, and the single cable, the signal line, the audio line and the power supply line are all Wrapped inside the overall sheath.

The cable single wire includes an inner conductor I, a foam insulation layer, an aluminum-plastic film tape and a conductive wire braid, and the inner conductor, the foam insulation layer, the aluminum-plastic film tape and the conductive wire braid I Arranged radially from the inside to the outside, the signal line includes a skin sheath I, an aluminum-plastic tape I and at least a pair of core wires I, the core wire I, the aluminum-plastic tape I and the skin sheath I is arranged radially from inside to outside in turn, the audio cable includes a skin sheath II, an aluminum-plastic tape II and at least one pair of core wires II, the core wire II, the aluminum-plastic tape II and the skin sheath The sheath II is sequentially arranged radially from the inside to the outside. The power cord includes a skin sheath III and a core wire III. The skin sheath III is wrapped on the outer surface of the core wire III. The core wire I or The core wire II or the core wire III are arranged in pairs, the foam insulation layer is a physical foam insulation layer, the aluminum-plastic film tape is a double-layer bonded aluminum-plastic film tape, and the aluminum-plastic film tape is a double-layer bonded aluminum-plastic film tape. Both the belt I and the aluminum-plastic belt II are single-layer aluminum-plastic belts, and the skin sheath I, the skin sheath II, the skin sheath III, the outer skin in the core wire III and the overall sheath The sleeves are all low-smoke halogen-free sheath layers.

In addition to the cable single wire, the signal wire, the audio wire and the power wire, the enclosure inside the overall sheath also has a soft material filler.

The beneficial effects of the utility model are: since the cable single wire, the signal wire, the audio frequency wire and the power supply wire in the utility model are all wrapped in the inside of the overall sheath, the cable can be To the function of a multi-functional cable, it can transmit digital or analog high-frequency signals, signal transmission feedback or control, audio information and rated power under rated voltage at the same time, so that users can feel that the laying of coaxial cables is convenient and will not affect the power after laying. Indoor beauty and many other advantages. Since the skin sheath I, the skin sheath II, the skin sheath III and the skin III in the core wire III are all low-smoke and halogen-free sheath layers, this increases the fire resistance of the product, Improve the flame retardant level of the product and the safety level of the laying site. Since the foam insulation layer adopts the manufacturing method of the physical foam insulation, using such a manufacturing method can improve the degree of foaming and the uniformity of foaming, reduce the deviation of the radial dimension, and at the same frequency , the attenuation constant is smaller than that of similar cables on the market, the return loss is larger, and the reflection of electromagnetic waves can be avoided or reduced. In addition to the cable single wire, the signal wire, the audio wire, and the power wire, there are flexible material fillers in the enclosure in the overall sheath, so that the entire combined cable can be guaranteed The roundness of the coaxial cable during use ensures the stability of the structure. Since the aluminum-plastic film tape is a double-layer bonded aluminum-plastic film tape, the aluminum-plastic film tape and the conductive metal wire braid together play a high shielding effect, ensuring that the cable single line can be fidelity, high Frequency transmission of image information. Due to the arrangement of the aluminum-plastic tape I and the aluminum-plastic tape II, the information transmitted in the signal line and the audio line can not be interfered by the intrusion of external electromagnetic signals, so that the signal will not be distorted, Guarantee the real effect of information transmission. Since the combined coaxial cable is covered by a common overall jacket, the production process is reduced, the product cost is reduced, energy is saved, and the construction purchase cost is also reduced.

Description of drawings

Fig. 1 is a sectional view of the assembly structure of the utility model.

Detailed ways

As shown in Figure 1, the utility model includes a cable single line 1, a signal line 2, an audio line 3, a power line 4 and a total sheath 10, the cable single line 1, the signal line 2, the audio line 3 and the The power cords 4 are wrapped inside the overall sheath 10 .

The cable single wire 1 includes an inner conductor I11, a foamed insulating layer 12, an aluminum-plastic film tape 13 and a conductive wire braid 14, the inner conductor 11, the foamed insulating layer 12, the aluminum-plastic film tape 13 and The conductive metal wire braid I14 is sequentially arranged radially from the inside to the outside, the signal line 2 includes a skin sheath I24, an aluminum-plastic tape I23 and at least a pair of core wires I6, the core wire I6, the aluminum-plastic The belt I23 and the skin sheath I24 are arranged radially from the inside to the outside in turn, the audio cable 3 includes a skin sheath II34, an aluminum-plastic belt II33 and at least one pair of core wires II7, the core wire II7, the The aluminum-plastic strip II33 and the skin sheath II34 are sequentially arranged radially from inside to outside, the power cord 4 includes a skin sheath III35 and a core wire III8, and the skin sheath III35 is wrapped around the core wire III8 The outer surface of the core wire I6 or the core wire II7 or the core wire III8 is set in pairs, the foam insulation layer 12 is a physical foam insulation layer, and the aluminum-plastic film strip 13 is a double Layer bonded aluminum-plastic film belt, the aluminum-plastic belt I23 and the aluminum-plastic belt II33 are all single-layer aluminum-plastic belts, the skin sheath I24, the skin sheath II34, the skin sheath III35, the skin sheath Both the outer skin of the core wire III8 and the overall sheath 10 are low-smoke halogen-free sheath layers. Both the sheath of the core wire I6 and the sheath of the core wire II7 are sheath layers of polyethylene insulating material.

In addition to the cable single wire 1, the signal wire 2, the audio wire 3 and the power wire 4, the enclosure inside the overall sheath 10 also has soft material fillers.

The working principle is as follows: the utility model is first straightened, laid, and after being connected, the combined coaxial cable can work. The cable single wire 1 constitutes a loop of telecommunication transmission through the inner conductor 11, the aluminum-plastic film strip 13 and the conductive wire braid I14, through which the video image information can be transmitted. Under the action of the foamed insulating layer 12, this loop prevents the leakage of electromagnetic waves during transmission, ensures the transmission of electric signals inside the foamed insulating layer 12, and prevents the transmission signal from leaking. During the transmission process, the aluminum-plastic film belt 13 and the conductive wire weaving I14 can filter and shield external electromagnetic signals, so as to ensure high-fidelity transmission of all video image information.

The signal line 2 constitutes a signal transmission loop through a pair of core wires I6, and through this loop, the function of transmitting feedback signals or performing signal control can be played. The shielding function of the aluminum-plastic tape I23 prevents external signals from infiltrating into the interior of the core wire I6, so that the signal transmission does not interfere or even be distorted, resulting in errors in control signals and malfunctions of facilities.

The audio line 3 forms an audio information transmission loop through a pair of the core wires II7, through which the audio information can be transmitted. The aluminum-plastic tape II33 has the same function as the aluminum-plastic tape I23, and plays a shielding role to ensure that the audio information is not invaded by external electromagnetic information during the transmission process, so that the audio is clear and undistorted.

The power cord 4 can be used as a power transmission line to transmit electric energy through a pair of the core wires III8.

The overall sheath 10 described in the utility model is made of low-smoke, halogen-free, flame-retardant insulating material, which enhances the fire-resistant performance of the product and reduces the harm to people caused by smoke and halogen gas generated in case of fire. , improve the flame retardant level of the product and the safety level of the laying site, and also play a comprehensive role in protecting the entire cable.

The utility model can be widely used in the field of wired transmission network communication.

Claims (3)

1. A combined coaxial cable, comprising a cable single wire (1), a signal wire (2), an audio wire (3), a power cord (4) and a total sheath (10), characterized in that: the cable single wire (1), the signal line (2), the audio line (3) and the power line (4) are all wrapped inside the overall sheath (10). 2. A combined coaxial cable according to claim 1, characterized in that: the cable single wire (1) includes an inner conductor I (11), a foam insulating layer (12), an aluminum-plastic film tape (13 ) and conductive wire braiding (14), the inner conductor (11), the foam insulation layer (12), the aluminum-plastic film tape (13) and the conductive wire braiding I (14) along the Arranged radially from the inside to the outside, the signal wire (2) includes a skin sheath I (24), an aluminum-plastic tape I (23) and at least one pair of core wires I (6), the core wire I (6) 1. The aluminum-plastic strip I (23) and the skin sheath I (24) are arranged radially from inside to outside in turn, and the audio cable (3) includes a skin sheath II (34), an aluminum-plastic strip II (33) and at least one pair of core wires II (7), the core wire II (7), the aluminum-plastic tape II (33) and the skin sheath II (34) are sequentially radially from inside to outside Setting, the power cord (4) includes a skin sheath III (35) and a core wire III (8), and the skin sheath III (35) is wrapped on the outer surface of the core wire III (8), so The core wire I (6) or the core wire II (7) or the core wire III (8) are arranged in pairs, the foam insulation layer (12) is a physical foam insulation layer, and the aluminum The plastic film belt (13) is a double-layer bonded aluminum-plastic film belt, and the aluminum-plastic belt I (23) and the aluminum-plastic belt II (33) are both single-layer aluminum-plastic belts, and the skin sheath I (24) , the skin sheath II (34), the skin sheath III (35), the outer skin in the core wire III (8) and the overall sheath (10) are all low-smoke halogen-free sheaths layer. 3. A combined coaxial cable according to claim 1 or 2, characterized in that: the inclusions in the overall sheath (10) include the cable single wire (1), the signal wire ( 2), outside the audio cable (3) and the power cable (4), there is a soft material filler.

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