High-flexibility vehicle-mounted type-C signal line

Abstract

The utility model relates to the technical field of signal lines, in particular to a high-flexibility vehicle-mounted type-C signal line which comprises at least one signal line pair formed by twisting two core lines, a positive power line, a negative power line and a Kevlar filler, the positive power line, the negative power line and the Kevlar filler are twisted into a cable with the signal line, and the periphery of the signal line is sequentially coated with a braid layer and an outer coating layer. Damage of mechanical shock to the wire rod can be effectively buffered, the bending resistance of the wire rod is improved, the positive power line comprises a conductor layer and a first insulating layer wrapping the conductor layer, the negative power line is formed by twisting a plurality of first conductors, and the twisted first conductors serve as the negative power line. The insulation layer of the negative electrode power line is omitted, so that the size of the wire can be effectively reduced, the flexibility of the wire is improved, the appearance and the flexibility of the wire can meet the use requirements of users, meanwhile, the requirement for at least 5W times of bending can be met, the quality and the transmission performance of the wire after long-term use can be stable, and the wire use requirements of external matching of automobiles are met.

Description

Technical Field

[0001] The present application relates to the technical field of signal lines, and in particular to a highly flexible vehicle-mounted type-C signal line. Background Art

[0002] With the development of the automotive industry, consumers are increasingly demanding smarter and more user-friendly vehicles. Many automakers are now enriching in-car accessories to improve user satisfaction and overall experience. However, in-car cables often place high demands on their diameter, flexibility, and bend resistance. Therefore, meeting these requirements while maintaining transmission performance is a major challenge for these cables, necessitating the design of an in-car signal cable that meets these demands. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a highly flexible vehicle-mounted type-C signal cable, including at least one group of signal wire pairs formed by twisting two signal core wires, and a positive power wire, a negative power wire and a Kevlar filling twisted into a cable with the signal wires, and the outer periphery is sequentially coated with a braided layer and an outer layer, the positive power wire includes a conductor layer and a first insulating layer covering the conductor layer, and the negative power wire is formed by twisting several first conductors.

[0004] Preferably, the conductor layer is formed by twisting a plurality of second conductors, and the twisting pitch of the plurality of first conductors is 12-13 mm.

[0005] Preferably, the twist pitch of the plurality of second conductors is 12-13 mm.

[0006] Preferably, the signal core wire includes a plurality of twisted third conductors and a second insulation layer covering the third conductors.

[0007] Preferably, the twisting pitch of the plurality of third conductors is 4-5 mm.

[0008] From the above, it can be seen that the application provided by the present application can obtain the following beneficial effects: by designing at least one group of signal wire pairs formed by twisting two signal core wires, and a positive power wire, a negative power wire and a Kevlar filling twisted into a cable with the signal wire, and sequentially coating the outer periphery with a braided layer and an outer layer, by adding Kevlar filling during cabling, it can effectively buffer the damage to the wire caused by mechanical impact and improve the bending resistance of the wire. The positive power wire includes a conductor layer and a first insulating layer covering the conductor layer. The negative power wire is formed by twisting a plurality of first conductors. Multiple twisted first conductors serve as the negative power wire. The cancellation of the insulating layer of the negative power wire can effectively reduce the wire size and improve the softness of the wire, so that the appearance and softness of the wire can meet the user's usage requirements, and at the same time can meet the bending requirements of at least 5W times, and can ensure the stability of the wire quality and transmission performance after long-term use, and meet the high requirements of automotive external supporting wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments of the present application or the prior art. Obviously, the drawings described below are only part of the embodiments of the present application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0010] Figure 1 This is a schematic diagram of the structure of a highly flexible vehicle-mounted type-C signal line according to an embodiment of the present application. DETAILED DESCRIPTION

[0011] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0012] Example

[0013] In order to solve the above technical problems, this embodiment provides a highly flexible vehicle-mounted type-C signal line, such as Figure 1As shown, it includes at least one group of signal wire pairs formed by twisting two signal core wires 10, and a positive power wire 20, a negative power wire 30 and a Kevlar filling 40 twisted together with the signal wires. After the signal wire pairs, the positive power wire 20, the negative power wire 30 and the Kevlar filling 40 are cabled, and the outer periphery of the cabled signal wire pairs, the positive power wire 20, the negative power wire 30 and the Kevlar filling 40 are sequentially coated with a braided layer 50 and an outer layer 60. By adding the Kevlar filling 40 during the cabling, the damage to the wires caused by mechanical impact can be effectively buffered and the bending resistance of the wires can be improved. The positive power wire 20 includes a conductor. The body layer 21 and the first insulating layer 22 covering the conductor layer 21, the negative power line 30 is formed by twisting a plurality of first conductors, and the plurality of twisted first conductors serve as the negative power line 30. The elimination of the insulating layer of the negative power line 30 can effectively reduce the size of the wire and improve the softness of the wire, so that the appearance and softness of the wire can meet the user's use requirements, and at the same time can meet the bending requirements of at least 5W times, which can ensure the stability of the wire quality and transmission performance of the wire after long-term use, and meet the high requirements of the external supporting wires of the automobile.

[0014] Specifically, the conductor layer 21 is composed of several second conductors twisted together, and the first insulating layer 22 is coated on the outer periphery of the conductor layer 21, wherein the twisting pitch of the several second conductors is 12-13mm, and the twisting pitch of the several first conductors is 12-13mm. Preferably, the twisting pitch of the second conductors and the twisting pitch of the first conductors are both 12mm.

[0015] In the above scheme, the Kevlar filling 40 has the characteristics of high flexibility and tensile strength, which can improve the roundness of the semi-finished cable product. Among them, the Kevlar filling 40 can be a filling rope formed by twisting bulletproof wire, so that the Kevlar filling has high strength and is relatively soft, which can effectively improve the flexibility and mechanical and physical properties of the wire.

[0016] Furthermore, the signal core 10 includes several twisted third conductors 11 and a second insulation layer 12 covering the third conductors 11. The second insulation layer 12 is made of polypropylene to reduce signal transmission losses and match impedance, thereby meeting the requirements of the Type-C signal transmission protocol. Furthermore, the first, second, and third conductors 11 can be made of flexible tinned copper, making the cable more flexible.

[0017] Furthermore, the twist pitch of the plurality of third conductors 11 is 4-5 mm, preferably 4 mm. Using multiple soft conductors twisted with a small pitch as the conductors of the signal core wire 10 and the power line, the structure of using multiple twisted conductors can improve the high flexibility and bending resistance of the core wire. Reducing the twist pitch of the conductor can improve the structural stability of the conductor, prevent damage to the conductor during post-processing and mechanical damage, thereby ensuring the stability of signal transmission performance.

[0018] Furthermore, the outer layer 60 uses a modified TPE rubber material, which has a hardness of 75A and is relatively soft, so that it can meet the physical performance requirements of vehicle-mounted wires such as aging and flame retardancy, while having a highly flexible feel, thereby improving the user experience as a vehicle-mounted external wire.

[0019] In summary, the present application scheme designs at least one group of signal line pairs formed by twisting two signal core wires, as well as a positive power line, a negative power line and a Kevlar filling twisted into a cable with the signal line, and sequentially coated with a braided layer and an outer layer on the periphery. By adding Kevlar filling during cabling, the damage to the wire caused by mechanical impact can be effectively buffered, and the bending resistance of the wire can be improved. The positive power line includes a conductor layer and a first insulating layer covering the conductor layer. The negative power line is formed by twisting a plurality of first conductors. Multiple twisted first conductors serve as the negative power line. The cancellation of the insulating layer of the negative power line can effectively reduce the wire size and improve the softness of the wire, so that the appearance and softness of the wire can meet the user's usage requirements, and at the same time can meet the bending requirements of at least 5W times, and can ensure the stability of the wire quality and transmission performance after long-term use, and meet the high requirements of automotive external supporting wires.

[0020] The above-described embodiments do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the scope of protection of this technical solution.

Claims

1. A highly flexible vehicle-mounted Type-C signal cable, characterized by: The invention comprises at least one signal line pair formed by twisting two signal core wires (10), and a positive power line (20), a negative power line (30) and a Kevlar filler (40) twisted together with the signal line pair, and is covered with a braided layer (50) and an outer layer (60) in sequence on the periphery, wherein the positive power line (20) comprises a conductor layer (21) and a first insulating layer (22) covering the conductor layer (21), and the negative power line (30) is formed by twisting a plurality of first conductors, and the plurality of twisted first conductors serve as the negative power line (30); The conductor layer (21) is formed by twisting a plurality of second conductors, wherein the twisting pitch of the plurality of second conductors is 12-13 mm; the twisting pitch of the plurality of first conductors is 12-13 mm; The signal core wire (10) comprises a plurality of twisted third conductors (11) and a second insulating layer (12) covering the third conductors (11); the twisting pitch of the plurality of third conductors (11) is 4-5 mm.

Images