Coaxial cable structure for vehicle

Abstract

The coaxial cable structure for the vehicle sequentially comprises a wire core, a metal wrapping tape, a shielding layer, a sheath layer and a wire core from inside to outside, wherein the wire core is composed of a 7 / 0.4 conductor and a PP insulating layer, and the outer diameter of the wire core is 1.48-1.53 mm; the metal wrapping tape is a layer of self-adhesive wingspan aluminum foil wrapped outside the wire core; and the shielding layer is formed by extruding a layer of semi-conductive plastic on the surface of the metal wrapping tape. The sheath layer is made of a PVC material. According to the utility model, the self-adhesive wingspan aluminum foil is adopted to replace the traditional double-sided aluminum foil wrapping tape, so that the problem of uneven aluminum foil wrapping of the coaxial cable can be solved technologically, and the problem of periodic peak of the coaxial cable in high-frequency performance can be solved from the aspect of performance. An original metal shielding layer structure is replaced by the wrapping layer extruded by semiconductor electric plastic, the structure is compact, a softer data cable product can be obtained, the structure can be suitable for being laid in a space with a smaller radius, durability and signal transmission stability are improved, and the data cable is more suitable for being used in an automobile environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of coaxial cables, in particular to a coaxial cable structure for vehicles. Background Art

[0002] Coaxial cable is already a very mature product. It is named because the central copper wire and the mesh conductive layer are coaxial. Together, they form a transmission loop for current. Coaxial cable is mainly used to transmit radio frequency signals or high-definition camera signals, because when high-frequency current is transmitted through ordinary wires, ordinary wires actually radiate signals like radio antennas, resulting in transmission signal power loss, so the received signal strength will be significantly weakened.

[0003] Although automotive coaxial cables are widely used in various automotive industries, there are still some problems in their use. Traditional automotive coaxial cables generally use metal tape, single-layer or double-layer metal braided wire shielding structure for the outer conductor. Although the outer conductor uses a single-layer or double-layer metal braided wire structure with very good shielding performance, it is expensive, difficult to bend, and inconvenient to use. Especially when wiring in the car, the speed and reliability of data transmission will be reduced due to the small turning radius, which will eventually cause system failure. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a vehicle coaxial cable structure, which makes the wire material more flexible and improves the signal transmission quality.

[0005] The utility model is achieved in this way:

[0006] A vehicle coaxial cable structure, which includes, from inside to outside, a wire core, a metal tape, a shielding layer, and a sheath layer.

[0007] The wire core is composed of a 7 / 0.16 conductor and a PP insulation layer and has an outer diameter of 1.48 to 1.53 mm;

[0008] The metal wrapping tape is a layer of self-adhesive wingspan aluminum foil coated on the outside of the wire core;

[0009] The shielding layer is a layer of semi-conductive plastic extruded on the surface of the metal tape.

[0010] Furthermore, the sheath layer is made of PVC material.

[0011] The advantages of the utility model are:

[0012] 1. Use self-adhesive wingspan aluminum foil instead of traditional double-sided aluminum foil wrapping tape, which can solve the uneven aluminum foil coating of coaxial cable in terms of technology, and solve the periodic peak problem of coaxial cable in high-frequency performance from the perspective of performance.

[0013] 2. Use a semiconductor plastic extruded coating to replace the original metal shielding layer structure to achieve the same shielding effect. This compact structure can make the wire more stable, reduce the overall wire structure size, reduce the consumption of metal copper, save costs, and meet the requirements of lightweight use. At the same time, a softer data cable product can be obtained. This structure can also be used in a space with a smaller laying radius, improve durability and signal transmission stability, making it more suitable for use in automotive environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Reference numerals:

[0017] 1- conductor, 2- insulation layer, 3- metal tape, 4- shielding layer, 5- sheath layer. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, a coaxial cable structure for a vehicle includes, from the inside to the outside, a wire core, a metal tape 3, a shielding layer 4, and a sheath layer 5.

[0019] The wire core is composed of a 7 / 0.16 conductor 1 and a PP insulation layer 2, and has an outer diameter of 1.48 to 1.53 mm;

[0020] The metal wrapping tape 3 is a layer of self-adhesive wingspan aluminum foil wrapped around the outer surface of the wire core;

[0021] The shielding layer 4 is a layer of semi-conductive plastic extruded on the surface of the metal tape 3;

[0022] The sheath layer 5 is made of PVC material.

[0023] This new cable is composed of a 1.48-1.53mm wire core consisting of a 7 / 0.16 conductor and a PP insulation layer, and then a layer of self-adhesive wingspan aluminum foil is coated on the wire core, and a layer of semi-conductive plastic is extruded on the self-adhesive wingspan aluminum foil to increase the cable's anti-interference ability. The semi-conductive plastic should be close to the self-adhesive wingspan aluminum foil to minimize electromagnetic interference. Finally, PVC and other materials are used to cover the outer surface of the cable to protect the cable and improve the strength and stability of the cable. The PVC sheath has the characteristics of high wear resistance, aging resistance, high temperature resistance and chemical corrosion resistance, and can effectively protect the cable.

[0024] The utility model adopts self-adhesive wingspan aluminum foil to replace the traditional double-sided aluminum foil wrapping tape, which can solve the problem of uneven aluminum foil wrapping of coaxial cables in terms of technology, and can solve the periodic peak problem of coaxial cables in high-frequency performance from a performance perspective. The coating layer extruded by semiconductor electrical plastics is used to replace the original metal shielding layer structure, so as to obtain the same shielding effect. This structure is compact, can make the wire more stable, can reduce the overall wire structure size, reduce the consumption of metal copper materials, save costs, and meet the requirements of lightweight use. At the same time, a softer data cable product can be obtained. This structure can also be used in a space with a smaller laying radius, improve durability and signal transmission stability, and make it more suitable for use in an automotive environment.

[0025] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A vehicle coaxial cable structure, comprising, from inside to outside: Wire core, metal tape, shielding layer, sheath layer, characterized by: The wire core is composed of a 7 / 0.16 conductor and a PP insulation layer and has an outer diameter of 1.48 to 1.53 mm; The metal wrapping tape is a layer of self-adhesive wingspan aluminum foil wrapped around the outside of the wire core; The shielding layer is a layer of semi-conductive plastic extruded on the surface of the metal tape.

2. A vehicle coaxial cable structure as claimed in claim 1, characterized in that :The sheath layer is made of PVC material.

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