A combined signal shielding cable

Abstract

This utility model discloses a combined signal shielding cable, comprising a shielding paper layer, a PTFE tape layer covering the outer periphery of the shielding paper layer, a water-blocking layer covering the outer periphery of the PTFE tape layer, a tinned copper wire braided layer covering the outer periphery of the water-blocking layer, an outer insulation layer covering the outer periphery of the tinned copper wire braided layer, and a plurality of first conductor assemblies and a plurality of second conductor assemblies disposed within the shielding paper layer. The spaces between the plurality of first conductor assemblies, the plurality of second conductor assemblies, and the shielding paper layer are filled with a plurality of dispersed bulletproof wires and a plurality of fiberglass yarns. This utility model can adapt to complex and changing usage environments. By providing a multi-layered protective structure around the first and second conductor assemblies, it improves the cable's resistance to swaying, bending, corrosion, and aging, thereby extending the cable's service life.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically a combined signal shielding cable. Background Technology

[0002] Currently, most cables are made of copper wire or other conductive metal with an outer layer of insulating material. In some special situations, due to strong electromagnetic interference, ordinary cables cannot shield electromagnetic waves or other external signals, making the cables susceptible to interference from electromagnetic waves or other external signals during the transmission of electrical signals. Therefore, signal shielded cables are usually used to reduce electromagnetic interference during the transmission of electrical signals.

[0003] Signal shielded cables are generally transmission lines that use a metal mesh braided layer to wrap the core wires. Existing signal shielded cables are prone to damage to their outer sheath and internal conductors when exposed to complex operating environments, such as twisting and bending. They have poor resistance to swaying and bending, resulting in poor durability and a shortened lifespan. Furthermore, in high-temperature, high-pressure, and highly corrosive environments, signal shielded cables are extremely susceptible to corrosion and aging, leading to poor sealing and reduced waterproofing. This further accelerates corrosion and aging, significantly shortening the lifespan of the signal shielded cables. Utility Model Content

[0004] The purpose of this invention is to provide a combined signal shielding cable that can improve its anti-sway and anti-bending performance while preventing corrosion and aging, thus significantly extending its service life. This addresses the problem mentioned in the background art that existing signal shielding cables have poor anti-sway and anti-bending capabilities and are prone to corrosion and aging, resulting in a shortened service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined signal shielding cable includes a shielding paper layer, a PTFE tape layer covering the outer periphery of the shielding paper layer, a water-blocking layer covering the outer periphery of the PTFE tape layer, a tinned copper wire braided layer covering the outer periphery of the water-blocking layer, an outer insulating layer covering the outer periphery of the tinned copper wire braided layer, and a plurality of first conductor assemblies and a plurality of second conductor assemblies disposed within the shielding paper layer. The plurality of first conductor assemblies, the plurality of second conductor assemblies and the shielding paper layer are filled with a plurality of bulletproof wires and a plurality of fiberglass yarns distributed in a diffuse manner.

[0007] Preferably, each of the first conductor assemblies includes a first conductor, a first inner insulation layer covering the outer periphery of the first conductor, and a copper foil wire layer surrounding the outer periphery of the first inner insulation layer.

[0008] Preferably, the copper foil layer is embedded with a plurality of nylon filaments.

[0009] Preferably, the copper foil wire layer is a copper foil mesh woven from copper foil wires.

[0010] Preferably, each of the second conductor assemblies includes a second conductor and a second inner insulating layer covering the outer peripheral surface of the second conductor.

[0011] Preferably, both the first conductor and the second conductor are made of silver-plated copper wire.

[0012] Preferably, both the first inner insulating layer and the second inner insulating layer are made of FEP.

[0013] Preferably, the outer diameter of the first inner insulating layer is 0.8 mm, the outer diameter of the second inner insulating layer is 1.1 mm, and the outer diameter of the outer insulating layer is 7.4 mm.

[0014] Preferably, talc powder is filled between the shielding paper layer, the copper foil wire layer, and the second inner insulation layer.

[0015] Preferably, the water-blocking layer is made of sealant.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: a multi-layer protective structure is provided around the first and second conductor assemblies, which can adapt to complex and changing usage environments. Specifically, the shielding effect of the signal is enhanced by the shielding paper layer; the anti-sway and anti-bending effect is improved by the PTFE tape layer, while also preventing corrosion and aging; the waterproof effect is improved by the water-blocking layer; the oxidation resistance and corrosion resistance are improved by the tinned copper wire braiding layer; and the anti-sway and anti-bending effect is improved by the bulletproof wire and fiberglass yarn, thereby extending the service life of the signal shielding wire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a combined signal shielding cable according to the present invention.

[0018] The markings in the diagram are as follows: 1. Shielding paper layer; 2. PTFE tape layer; 3. Water-blocking layer; 4. Tinned copper wire braided layer; 5. Outer insulation layer; 6. First conductor assembly; 61. First conductor; 62. First inner insulation layer; 63. Copper foil wire layer; 64. Nylon filament; 7. Second conductor assembly; 71. Second conductor; 72. Second inner insulation layer; 8. Bulletproof wire; 9. Fiberglass yarn; 10. Talc powder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 A combined signal shielding cable includes a shielding paper layer 1, a PTFE tape layer 2 covering the outer periphery of the shielding paper layer 1, a water-blocking layer 3 covering the outer periphery of the PTFE tape layer 2, a tinned copper wire braided layer 4 covering the outer periphery of the water-blocking layer 3, an outer insulating layer 5 covering the outer periphery of the tinned copper wire braided layer 4, and a plurality of first conductor assemblies 6 and a plurality of second conductor assemblies 7 disposed within the shielding paper layer 1. A plurality of bulletproof wires 8 and a plurality of fiberglass yarns 9, distributed in a diffuse pattern, are filled between the plurality of first conductor assemblies 6, the plurality of second conductor assemblies 7 and the shielding paper layer 1.

[0021] This utility model features a multi-layered protective structure around the first conductor assembly 6 and the second conductor assembly 7, enabling it to adapt to complex and changing operating environments and extend the service life of the signal shielding cable. Specifically, the shielding paper layer 1 enhances the signal shielding effect; the PTFE tape layer 2 improves resistance to swaying and bending while preventing corrosion and aging; the water-blocking layer 3 improves waterproofing; the tinned copper wire braided layer 4 enhances oxidation and corrosion resistance; and the bulletproof wire 8 and fiberglass yarn 9 further improve resistance to swaying and bending.

[0022] In this embodiment, the shielding paper layer 1 is annular and formed by winding aluminum foil paper; the PTFE tape layer 2 is formed by winding PTFE tape onto the shielding paper layer 1. The PTFE tape layer 2 has excellent flexibility, compression resilience, creep resistance, high and low temperature resistance, excellent corrosion resistance, non-aging properties, self-lubricating properties, and excellent sealing performance, which can effectively prevent corrosion and improve sealing performance; the water-blocking layer 3 uses a sealant with good sealing performance, which can effectively achieve waterproofing; the tin-plated copper wire braided layer 4 is a tin-plated copper wire braided mesh formed by braiding tin-plated copper wire. The tin-plated copper wire braided mesh has shielding, anti-signal interference, wear resistance, and finishing functions; tin plating the outer periphery of the copper wire helps to improve the oxidation resistance and corrosion resistance of the tin-plated copper wire braided layer 4. The fiberglass yarn 9 is a yarn made of glass fiber, which has anti-static and anti-aging characteristics. Under normal temperature use, the fiberglass yarn 9 has excellent durability; the bending test of the bulletproof wire 8 and the fiberglass yarn 9 can easily pass more than 1 million times; the outer insulation layer 5 is made of silicone.

[0023] Each of the first conductor assemblies 6 includes a first conductor 61, a first inner insulating layer 62 covering the outer periphery of the first conductor 61, and a copper foil wire layer 63 surrounding the outer periphery of the first inner insulating layer 62. In this embodiment, the copper foil wire layer 63 is embedded with a plurality of nylon wires 64, which can improve the deformation resistance of the copper foil wire layer 63; there are two first conductor assemblies 6, which are relatively distributed inside the shielding paper layer 1. The copper foil wire layer 63 is a copper foil mesh woven from copper foil wires. The copper foil mesh has the function of shielding signals, and together with the outer tin-plated copper wire braided layer 4, the signal anti-interference performance is further enhanced.

[0024] Each of the second conductor assemblies 7 includes a second conductor 71 and a second inner insulation layer 72 covering the outer periphery of the second conductor 71. In this embodiment, the number of second conductor assemblies 7 is six, but this invention does not limit the number of first conductor assemblies 6 and second conductor assemblies 7. Both the first conductor 61 and the second conductor 71 are made of silver-plated copper wire, which has excellent conductivity, thermal conductivity, corrosion resistance, and high-temperature oxidation resistance. Both the first inner insulation layer 62 and the second inner insulation layer 72 are made of FEP (fluorinated ethylene propylene copolymer).

[0025] The diameter of the first conductor 61 is different from that of the second conductor 71, and the signal shielding requirements of the first conductor 61 and the second conductor 71 are different, which makes the signal shielding wire suitable for different application scenarios and has a wide range of applications.

[0026] Talc powder 10 is filled between the shielding paper layer 1, the copper foil wire layer 63, and the second inner insulation layer 72 to fill the space inside the shielding paper layer 1, preventing the copper foil wire layer 63 and the second inner insulation layer 72 from sticking tightly to the shielding paper layer 1 during long-term use, and avoiding the first conductor 61 in the copper foil wire layer 63 and the second conductor 71 in the second inner insulation layer 72 from being squeezed and damaged.

[0027] The outer diameter of the first inner insulation layer 62 is 0.8 mm, the outer diameter of the second inner insulation layer 72 is 1.1 mm, and the outer diameter of the outer insulation layer 5 is 7.4 mm.

[0028] In summary, this utility model improves the anti-sway, anti-bending, anti-corrosion, and anti-aging effects of the first conductor 61 and the second conductor 71 by setting a multi-layer protective structure around the first conductor assembly 6 and the second conductor assembly 7, thereby extending the service life of the cable; at the same time, it has excellent anti-interference performance, strong signal shielding performance, and strong signal transmission performance.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined signal shielding cable, characterized in that: It includes a shielding paper layer (1), a PTFE tape layer (2) covering the outer periphery of the shielding paper layer (1), a water-blocking layer (3) covering the outer periphery of the PTFE tape layer (2), a tin-plated copper wire braided layer (4) covering the outer periphery of the water-blocking layer (3), an outer insulating layer (5) covering the outer periphery of the tin-plated copper wire braided layer (4), and a plurality of first conductor assemblies (6) and a plurality of second conductor assemblies (7) disposed in the shielding paper layer (1). The plurality of first conductor assemblies (6), the plurality of second conductor assemblies (7) and the shielding paper layer (1) are filled with a plurality of bulletproof wires (8) and a plurality of glass fiber yarns (9) distributed in a diffuse manner.

2. The combined signal shielding cable according to claim 1, characterized in that: Each of the first conductor assembly (6) includes a first conductor (61), a first inner insulation layer (62) covering the outer periphery of the first conductor (61), and a copper foil wire layer (63) surrounding the outer periphery of the first inner insulation layer (62).

3. The combined signal shielding cable according to claim 2, characterized in that: The copper foil layer (63) is embedded with several nylon filaments (64).

4. The combined signal shielding cable according to claim 2 or 3, characterized in that: The copper foil wire layer (63) is a copper foil wire mesh woven from copper foil wires.

5. The combined signal shielding cable according to claim 2, characterized in that: Each of the second conductor assembly (7) includes a second conductor (71) and a second inner insulation layer (72) covering the outer periphery of the second conductor (71).

6. The combined signal shielding cable according to claim 5, characterized in that: The first conductor (61) and the second conductor (71) are both made of silver-plated copper wire.

7. The combined signal shielding cable according to claim 5, characterized in that: The first inner insulating layer (62) and the second inner insulating layer (72) are both made of FEP.

8. The combined signal shielding cable according to claim 7, characterized in that: The outer diameter of the first inner insulation layer (62) is 0.8 mm, the outer diameter of the second inner insulation layer (72) is 1.1 mm, and the outer diameter of the outer insulation layer (5) is 7.4 mm.

9. The combined signal shielding cable according to any one of claims 5-8, characterized in that: Talc powder (10) is filled between the shielding paper layer (1), the copper foil wire layer (63), and the second inner insulation layer (72).

10. The combined signal shielding cable according to claim 1, characterized in that: The water-blocking layer (3) is made of sealant.

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