CN213878433U

CN213878433U - Antenna cable for vehicle-mounted communication system

Info

Publication number: CN213878433U
Application number: CN202022874019.2U
Authority: CN
Inventors: 吴仁和; 茆永洲; 陈卫华
Original assignee: Quanxing Cable Co ltd Jiangsu
Current assignee: Quanxing Cable Co ltd Jiangsu
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-08-03
Anticipated expiration: 2030-12-04

Abstract

The utility model provides an antenna cable for on-vehicle communication system, is including setting up many data lines, signal line and the power wire at cable center layer, the outer wall of data line, signal line and power wire tangent, be located and be provided with the filling layer between the inner gap of data line, signal line and power wire, the outside that is located data line, signal line and power wire is provided with the shielding layer, the outside of shielding layer is provided with the outer jacket, the outer jacket adopt low temperature resistant elastomer material to make. The utility model discloses when having increased the pliability of cable, still effectual shielded wire who guarantees the cable.

Description

Antenna cable for vehicle-mounted communication system

Technical Field

The utility model relates to the technical field of cables, concretely relates to an antenna cable for on-vehicle communication system.

Background

The cable is a main facility for power transmission and signal transmission, and with the development of technology, the application environment of the cable is various. For example: in a vehicle-mounted communication system, a technique of using a radiating cable antenna as a fixed part of the system and a dipole antenna as a mobile part of the system is employed.

However, since the coaxial high-frequency cable used in the conventional vehicle antenna is often bent in use, the material is easily torn and broken, which adversely affects safety. Some coaxial high-frequency cables adopt materials which are relatively resistant to bending (such as relatively thin metal shielding layers) so as to adapt to the working environment, but because the metal shielding layers are relatively thin, the anti-interference capability is greatly reduced; on the other hand, if the anti-interference performance of the cable is solved by means of a thick metal layer and the like, the cable is hard and cannot be applied to a working environment.

Disclosure of Invention

In view of the above technical problems, the present technical solution provides an antenna cable for a vehicle-mounted communication system, which can effectively solve the above problems.

The utility model discloses a following technical scheme realizes:

an antenna cable for a vehicle-mounted communication system comprises a plurality of data lines, signal lines and power supply leads which are arranged on a cable center layer, wherein a filling layer is arranged among gaps among the data lines, the signal lines and the power supply leads; the outer walls of the data line, the signal line and the power supply lead are tangent in pairs and internally tangent to the total shielding layer; the outer protective layer is made of low-temperature-resistant elastomer materials.

Furthermore, the outer jacket is made of TPE materials.

Furthermore, the plurality of data wires are uniformly distributed around the central axis of the cable, and the signal wires and the power supply wires are uniformly distributed among the data wires; and the plurality of data lines, the signal lines and the power supply conducting wires are symmetrically arranged along the diameter of the cross section of the cable.

Furthermore, a filling layer is arranged among the inner gaps of the data wire, the signal wire and the power supply wire; a filling layer is arranged between the data wire, the signal wire and the power supply lead and the inner wall of the total shielding layer; or no filling layer is arranged between the data wire, the signal wire, the power wire and the inner wall of the total shielding layer.

Furthermore, the filling layer adopts fiber yarns.

Furthermore, the filling layer is made of aramid fiber.

Furthermore, the data line comprises a plurality of conducting wires which are stranded around the central axis of the data line, and a data line shielding layer is arranged outside the conducting wires; the outer walls of the wires are tangent pairwise, and the outer wall of the other side of each wire is internally tangent to the data wire shielding layer.

Furthermore, the total shielding layer or the data wire shielding layer comprises a wrapping layer and a woven layer.

Furthermore, the wrapping layer is wrapped by adopting aluminum foil, and the overlapping rate of the wrapping is more than or equal to 15%; the braided layer adopts a tinned wire braided layer, and the braiding density is more than or equal to 85%.

Furthermore, the conducting wire comprises a conductor arranged on the inner side and an outer cladding layer arranged on the outer side of the conductor, and the outer cladding layer is made of different colors.

Furthermore, the conductor adopts a copper wire or a silver-plated copper wire.

Advantageous effects

The utility model provides a pair of an antenna cable for on-vehicle communication system compares with prior art, and it has following beneficial effect:

(1) the outer jacket among this technical scheme adopts the thermoplastic elastomer material to make, and the outer jacket that the thermoplastic elastomer material was made has increased the high strength of cable, high resilience, weatherability, fatigue resistance and temperature toleration. In addition, the shielding layer adopts an aluminum foil wrapping layer and a tinned wire braid layer, and double shielding is realized, so that the shielding property of the cable is improved; meanwhile, the braided layer is braided by the tinned wire, so that the flexibility of the cable is further improved while the cable is shielded.

(2) The data line is arranged, so that external signals can be effectively shielded while signals are transmitted, and an anti-interference effect is achieved; meanwhile, the transmitted data can be effectively prevented from being stolen by the outside. Meanwhile, the insulating layers are different in color, so that later-stage installation can be facilitated.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the data line of the present invention.

Reference symbols in the drawings: the cable comprises a 1-data wire, a 11-lead, a 12-data wire shielding layer, a 2-signal wire, a power supply lead, a 3-total shielding layer, a 31-lapping layer, a 32-braided layer, a 4-outer protective layer and a 5-filling layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. Under the prerequisite that does not deviate from the design concept of the utility model, the ordinary person in the art should fall into the protection scope of the utility model to the various changes and improvements that the technical scheme of the utility model made.

Example 1:

as shown in fig. 1, an antenna cable for a vehicle-mounted communication system includes a plurality of data lines 1, signal lines, and power wires 2 disposed at a cable center layer, a total shielding layer 3 disposed outside the data lines 1, the signal lines, and the power wires 2, and an outer protective layer 4 disposed outside the total shielding layer 3.

The data wires 1 are uniformly distributed around the central axis of the cable, the signal wires and the power wires 2 are uniformly distributed among the data wires 1, and the data wires 1, the signal wires and the power wires 2 are symmetrically arranged along the diameter of the cross section of the cable; the outer walls of all the data lines 1, the signal lines and the power supply lead wires 2 are tangent pairwise and internally tangent to the total shielding layer 3.

A filling layer 5 is arranged among gaps among the data wire 1, the signal wire and the power wire 2; a filling layer 5 is arranged among the data line 1, the signal line and the inner gap of the power supply lead 2; in general, the gap between the data line 1, the signal line, and the power supply line 2 and the inner wall of the total shield layer 3 is small, and therefore, no filler layer is provided. However, when the number of the data lines 1, the signal lines, and the power supply wires 2 is large and the gaps between the data lines 1, the signal lines, the power supply wires 2, and the inner walls of the total shield layer 3 are large, it is necessary to provide a filling layer to fill the gaps, thereby increasing the stability and strength of the cable. The filling layer adopts the cellosilk to fill, and in this embodiment, the filling layer adopts aramid fiber.

The total shielding layer 3 comprises a wrapping layer 31 wrapping the data wire 1, the signal wire and the power conductor 2, and a woven layer 32 arranged on the outer side of the wrapping layer 31. The wrapping layer 31 is wrapped by aluminum foil, and the overlapping rate of the wrapping is more than or equal to 15%; the braided layer 32 is a tinned wire braided layer, and the braiding density is more than or equal to 85%.

In order to consider the process convenience, the fabric is generally wrapped firstly and then woven; therefore, most of the braided fabric layer is arranged on the inner side of the wrapping layer, and the braided layer is arranged on the outer side of the wrapping layer. But weave earlier, afterwards around the package, be about the weaving layer setting in the inboard of covering also be an implementation mode of this technical scheme.

Outer jacket 4 adopts low temperature resistant elastomer material to make, and outer jacket 4 adopts thermoplastic elastomer material to make, and what this embodiment adopted is that the TPE material is made.

The number of the data lines 1, the signal lines and the power supply wires 2 can be increased or decreased according to the requirements; the change in the number of data lines 1, signal lines and power supply conductors 2 only changes the cross section of the cable. In this embodiment, the center layer of the cable is provided with two data lines 1, and the signal lines and the power supply wires 2 are four in total.

The signal wire and the power supply wire 2 are insulated single wires, the insulated single wires are tinned copper wires, and an insulating layer is arranged on the outer sides of the tinned copper wires; the insulating layer is made of fluoroplastics and is distinguished and marked by different colors.

As shown in fig. 2, the data line 1 includes a plurality of conducting wires 11 twisted around a central axis of the data line, and a data line shielding layer 12 is disposed outside the conducting wires 11; the outer walls of the wires 11 are tangent to each other, and the outer wall of the other side of the wire 11 is inscribed in the data line shielding layer 12. In the present embodiment, two conductive wires 11 are disposed in the data line 1, and are twisted around the central axis of the data line 1.

The lead 11 comprises a conductor arranged at the inner side and an outer cladding arranged at the outer side of the conductor, and the conductor adopts soft round copper wires or silver-plated soft round copper wires; the outer cladding layer wrapped on the outer side of the soft round copper wire adopts an insulating layer made of polyethylene; the outer cladding adopts different colors for distinguishing and marking.

The data wire shielding layer 12 includes a wrapping layer wrapping the outside of the wire and a braided layer disposed on the outside of the wrapping layer. The wrapping layer is wrapped by aluminum foil, and the overlapping rate of the wrapping is more than or equal to 15%; the braided layer adopts a tinned wire braided layer, and the braiding density is more than or equal to 85%.

Claims

1. An antenna cable for an in-vehicle communication system, characterized in that: the shielding cable comprises a plurality of data wires (1), signal wires and power leads (2) which are arranged on a cable center layer, wherein a filling layer (5) is arranged among gaps among the data wires (1), the signal wires and the power leads (2), a main shielding layer (3) is arranged on the outer sides of the data wires (1), the signal wires and the power leads (2), and an outer protective layer (4) is arranged on the outer side of the main shielding layer (3); the outer walls of the data line (1), the signal line and the power lead (2) are tangent pairwise and internally tangent to the total shielding layer (3); the outer protective layer (4) is made of low-temperature-resistant elastomer materials.

2. An antenna cable for an in-vehicle communication system according to claim 1, characterized in that: the outer protective layer (4) is made of thermoplastic elastomer materials.

3. An antenna cable for an in-vehicle communication system according to claim 1, characterized in that: the data lines (1) are uniformly distributed around the central axis of the cable, and the signal lines and the power supply wires (2) are uniformly distributed among the data lines (1); and the data lines (1), the signal lines and the power supply conducting wires (2) are symmetrically arranged along the diameter of the cross section of the cable.

4. An antenna cable for an in-vehicle communication system according to claim 1 or 2, characterized in that: a filling layer (5) is arranged among the inner gaps of the data wire (1), the signal wire and the power supply lead (2); a filling layer (5) is arranged between the data wire (1), the signal wire and the power wire (2) and the inner wall of the total shielding layer (3); or no filling layer is arranged between the data wire (1), the signal wire and the power wire (2) and the inner wall of the total shielding layer (3).

5. An antenna cable for an in-vehicle communication system according to claim 3, characterized in that: the filling layer (5) adopts fiber yarns.

6. An antenna cable for an in-vehicle communication system according to claim 3, characterized in that: the data line (1) comprises a plurality of conducting wires which are stranded around the central axis of the data line (1), and a data line shielding layer (12) is arranged outside the conducting wires; the outer walls of the wires are tangent pairwise, and the outer wall of the other side of each wire is internally tangent to the data wire shielding layer (12).

7. An antenna cable for an in-vehicle communication system according to claim 6, characterized in that: the total shielding layer (3) or the data wire shielding layer (12) comprises a wrapping layer and a woven layer.

8. An antenna cable for an in-vehicle communication system according to claim 7, characterized in that: the wrapping layer is wrapped by adopting aluminum foil, and the overlapping rate of the wrapping is more than or equal to 15%; the braided layer adopts a tinned wire braided layer, and the braiding density is more than or equal to 85%.

9. An antenna cable for an in-vehicle communication system according to claim 6, characterized in that: the conducting wire comprises a conductor arranged on the inner side and an outer cladding layer arranged on the outer side of the conductor, and the outer cladding layer is made of different colors.

10. An antenna cable for an in-vehicle communication system according to claim 9, characterized in that: the conductor adopts a copper wire or a silver-plated copper wire.