A double-layer composite shielding anti-interference data transmission cable structure

Abstract

The utility model discloses a double -deck composite shielding anti -interference data transmission cable structure, including copper core, the outer surface of copper core all is covered with rubber insulating layer, and the mutual entanglement is formed to the group wire core to form to adjacent two copper cores, and the number of wire core is four, still include anti -interference mechanism, anti -interference mechanism: it includes aluminium foil layer one, aluminium foil layer two, copper braid layer and axial copper line, aluminium foil layer one fixed cover is established in the outside of wire core, and the outside fixed cover of four aluminium foil layer one is established to have the inner sheath, and the outer surface fixed connection of inner sheath has aluminium foil layer two, and the outer surface fixed cover of aluminium foil layer two has copper braid layer, and the inside fixed connection of copper braid layer has the evenly distributed axial copper line, and maintains the electric continuity of copper braid layer, and the copper core cooperation aluminium foil layer one of mutual entanglement reduces the electromagnetic interference between the wire core in the cable inside to the maximum extent, and this double -deck composite shielding anti -interference data transmission cable structure.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a double-layer composite shielded anti-interference data transmission cable structure. Background Technology

[0002] As the "nerveline" of modern information society, cables achieve the transmission of energy and information through the conductor-shielding layer collaborative system. They are the physical layer support for new infrastructure such as intelligent manufacturing and smart cities, and have the strategic infrastructure attribute of "one cable carrying two streams (power flow / data flow)". With the development of technology, people's performance requirements for cables are also gradually increasing.

[0003] Existing cables use a double-layer shielding structure of braided and aluminum foil to provide anti-interference protection. The outer copper braided layer and the inner aluminum foil shielding layer work together to provide all-round anti-interference protection for the cable.

[0004] Existing cables use a double-layer shielding structure of braided braid and aluminum foil for interference protection. While this provides good interference protection, the braided layer may loosen locally when the cable is bent, leading to poor contact and affecting the cable's interference resistance. At the same time, mutual electromagnetic interference can occur between the wire cores inside the cable. Therefore, we propose a double-layer composite shielded interference-resistant data transmission cable structure. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a double-layer composite shielded anti-interference data transmission cable structure. Through the anti-interference mechanism, axial copper wires are fixedly and uniformly distributed inside the copper braid layer. The axial copper wires keep the copper braid physically fixed and maintain the electrical continuity of the copper braid layer. At the same time, the twisted copper cores cooperate with the aluminum foil layer to minimize the electromagnetic interference between the wire cores inside the cable, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-layer composite shielded anti-interference data transmission cable structure, including a copper core, the outer surface of which is covered with a rubber insulation layer, two adjacent copper cores are twisted together to form a group of wire cores, the number of wire cores is four, and it also includes an anti-interference mechanism.

[0007] Anti-interference mechanism: It includes aluminum foil layer one, aluminum foil layer two, copper braid layer and axial copper wire. Aluminum foil layer one is fixedly sleeved on the outside of the wire core. An inner sheath is fixedly sleeved on the outside of the four aluminum foil layers one. Aluminum foil layer two is fixedly connected to the outer surface of the inner sheath. A copper braid layer is fixedly sleeved on the outer surface of aluminum foil layer two. A uniformly distributed axial copper wire is fixedly connected inside the copper braid layer. Through the anti-interference mechanism, the uniformly distributed axial copper wire is fixed inside the copper braid layer. The axial copper wire keeps the copper braid physically fixed and maintains the electrical continuity of the shielding layer. At the same time, the twisted copper cores cooperate with aluminum foil layer one to minimize electromagnetic interference between the wire cores inside the cable.

[0008] Furthermore, the outer surface of the copper braided layer is wrapped with steel tape armor, the outer surface of the steel tape armor is fixedly fitted with a waterproof layer, the outer surface of the waterproof layer is fixedly fitted with a flame-retardant layer, and the outer surface of the flame-retardant layer is fixedly fitted with a wear-resistant protective layer to protect the cable.

[0009] Furthermore, the waterproof layer is a silicone rubber layer, which provides waterproof protection for the cable.

[0010] Furthermore, the flame-retardant layer is a polyvinyl chloride layer, which provides fire protection for the cable.

[0011] Furthermore, the wear-resistant protective layer is a polyurethane layer, which makes the cable more wear-resistant and improves its service life.

[0012] Furthermore, the steel strip armor is made of stainless steel and is spirally wound around the outer surface of the copper braid layer, thereby improving the overall strength of the cable.

[0013] Furthermore, the space between the inner sheath and the aluminum foil layer is filled with uniformly distributed silicone strips to protect the wire core, absorb some of the pressure, and improve the service life of the cable.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This double-layer composite shielded anti-interference data transmission cable structure has the following advantages:

[0015] Through the anti-interference mechanism, axially distributed copper wires are fixed inside the copper braid layer. The axial copper wires keep the copper braid physically fixed, maintain the electrical continuity of the shielding layer, and improve the practical performance of the copper braid layer. At the same time, the intertwined copper cores, together with the aluminum foil layer, minimize electromagnetic interference between the wire cores inside the cable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Copper core, 2. Rubber insulation layer, 3. Anti-interference mechanism, 31. Aluminum foil layer one, 32. Aluminum foil layer two, 33. Copper braided layer, 34. Axial copper wire, 4. Silicone strip, 5. Inner sheath, 6. Waterproof layer, 7. Flame retardant layer, 8. Wear-resistant protective layer, 9. Steel strip armor. 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 1-2 This embodiment provides a technical solution: a double-layer composite shielded anti-interference data transmission cable structure, including a copper core 1, the outer surface of which is covered with a rubber insulation layer 2, and two adjacent copper cores 1 are twisted together to form a set of wire cores. The wire cores inside the double-layer composite shielded anti-interference data transmission cable structure are formed by two copper cores 1 twisted together. Each pair of copper cores 1 transmits signals of equal magnitude and opposite polarity, and the electromagnetic fields generated by themselves cancel each other out, reducing external radiation and crosstalk between wire pairs. The number of wire cores is four, and it also includes an anti-interference mechanism 3.

[0021] Anti-interference mechanism 3: It includes aluminum foil layer 1 31, aluminum foil layer 2 32, copper braid layer 33, and axial copper wire 34. Aluminum foil layer 1 31 is fixedly sleeved on the outside of the wire core. Inner sheaths 5 are fixedly sleeved on the outside of the four aluminum foil layers 1 31. The inner sheaths 5 limit and integrate the wire core. The inner sheaths 5 are made of rubber. Evenly distributed silicone strips 4 are filled between the inner sheaths 5 and the aluminum foil layers 1 31. The silicone strips 4 provide isolation and protection for the wire core, and can also absorb some pressure, thereby extending the service life of the wire core. Aluminum foil layer 2 32 is fixedly connected to the outer surface of the inner sheaths 5. A copper braided layer 33 is fixedly sleeved on the outer surface of foil layer 32. Uniformly distributed axial copper wires 34 are fixedly connected inside the copper braided layer 33. Electromagnetic interference generated inside the wire cores is shielded by aluminum foil layer 31, preventing electromagnetic interference between the wire cores. The interior of aluminum foil layer 32 is reinforced with a polyester film, thus efficiently reflecting high-frequency electromagnetic waves (both aluminum foil layer 31 and aluminum foil layer 32 are spirally wound). The copper braided layer 33 is a mesh structure formed by intersecting copper wires, reflecting or absorbing external electromagnetic interference through a high-density metal mesh. The aluminum foil layer 32 reflects interference, and the outer copper braid layer 33 attenuates residual electromagnetic waves, thus providing all-round protection for the cable. When the cable bends, the copper braid layer 33 may loosen locally, leading to poor contact. However, the axial copper wire 34 keeps the copper braid layer 33 physically fixed, maintaining the electrical continuity of the shielding layer. Furthermore, the axial copper wire 34 is connected in parallel with the copper braid layer 33 throughout, providing a low-impedance DC path, significantly reducing the transfer impedance of the shielding layer, and ensuring that interference current is quickly conducted to the ground. The outer surface of the copper braid layer 33 is wrapped with steel tape armor 9, which is made of stainless steel. The cable is made of steel, with steel tape armor 9 spirally wound around the outer surface of the copper braid layer 33. The steel tape armor 9 enhances the cable's resistance to mechanical damage. A waterproof layer 6, which is a silicone rubber layer, is fixedly sleeved on the outer surface of the steel tape armor 9. The waterproof layer 6 provides waterproof isolation for the cable. A flame-retardant layer 7, which is a polyvinyl chloride layer, is fixedly sleeved on the outside of the waterproof layer 6. The flame-retardant layer 7 provides flame retardant effect for the cable. The flame-retardant layer 7 is a polyvinyl chloride layer. An abrasion-resistant protective layer 8, which is a polyurethane layer, is fixedly sleeved on the outside of the flame-retardant layer 7. The abrasion-resistant protective layer 8 protects the cable and improves its abrasion resistance.

[0022] The working principle of the double-layer composite shielded anti-interference data transmission cable structure provided by this utility model is as follows: The internal core of the double-layer composite shielded anti-interference data transmission cable structure consists of two copper cores 1 twisted together. Each pair of copper cores 1 transmits signals of equal magnitude and opposite polarity, and the electromagnetic fields generated by themselves cancel each other out, reducing external radiation and crosstalk between wire pairs. The aluminum foil layer 1 31 shields the electromagnetic interference generated inside the core, preventing electromagnetic interference between the cores. The aluminum foil layer 2 32 is reinforced with a polyester film, thereby efficiently reflecting high-frequency electromagnetic waves. (Both aluminum foil layer 1 31 and aluminum foil layer 2 32 are spirally wound.) The copper braided layer 33 is a mesh structure formed by intersecting copper wires. It reflects or absorbs external electromagnetic interference through a high-density metal mesh. The inner aluminum foil layer 2 32 reflects interference, while the outer... The copper braided layer 33 attenuates residual electromagnetic waves, thus providing all-round protection for the cable. When the cable bends, the copper braided layer 33 may loosen locally, leading to poor contact. However, the axial copper wire 34 keeps the copper braided layer 33 physically fixed, maintaining the electrical continuity of the shielding layer. The axial copper wire 34 is connected in parallel with the copper braided layer 33 throughout, providing a low-impedance DC path, significantly reducing the transfer impedance of the shielding layer and ensuring that interference current is quickly conducted to the ground. The silicone strip 4 provides isolation protection for the wire core and can also absorb some pressure, thereby extending the service life of the wire core. The inner sheath 5 limits and integrates the wire core. The waterproof layer 6 provides waterproof isolation for the cable. The flame-retardant layer 7 provides flame retardant effect for the cable. The wear-resistant protective layer 8 protects the cable and improves its wear resistance. The steel tape armor 9 enhances the cable's resistance to mechanical damage.

[0023] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-layer composite shielded anti-interference data transmission cable structure, comprising copper cores (1), wherein the outer surface of each copper core (1) is covered with a rubber insulation layer (2), and two adjacent copper cores (1) are twisted together to form a group of wire cores, the number of wire cores being four, characterized in that: It also includes an anti-interference mechanism (3); Anti-interference mechanism (3): It includes aluminum foil layer one (31), aluminum foil layer two (32), copper braid layer (33) and axial copper wire (34). The aluminum foil layer one (31) is fixedly sleeved on the outside of the wire core. The four aluminum foil layers one (31) are fixedly sleeved with inner sheaths (5). The outer surface of the inner sheaths (5) is fixedly connected with aluminum foil layer two (32). The outer surface of aluminum foil layer two (32) is fixedly sleeved with copper braid layer (33). The copper braid layer (33) is fixedly connected with evenly distributed axial copper wire (34) inside.

2. The double-layer composite shielded anti-interference data transmission cable structure according to claim 1, characterized in that: The outer surface of the copper braided layer (33) is wrapped with a steel strip armor (9), and a waterproof layer (6) is fixedly fitted on the outer surface of the steel strip armor (9). A flame-retardant layer (7) is fixedly fitted on the outside of the waterproof layer (6), and a wear-resistant protective layer (8) is fixedly fitted on the outside of the flame-retardant layer (7).

3. The double-layer composite shielded anti-interference data transmission cable structure according to claim 2, characterized in that: The waterproof layer (6) is a silicone rubber layer.

4. The double-layer composite shielded anti-interference data transmission cable structure according to claim 2, characterized in that: The flame retardant layer (7) is a polyvinyl chloride layer.

5. The double-layer composite shielded anti-interference data transmission cable structure according to claim 2, characterized in that: The wear-resistant protective layer (8) is a polyurethane layer.

6. The double-layer composite shielded anti-interference data transmission cable structure according to claim 2, characterized in that: The steel strip armor (9) is made of stainless steel and is spirally wound around the outer surface of the copper braid layer (33).

7. The double-layer composite shielded anti-interference data transmission cable structure according to claim 1, characterized in that: The inner sheath (5) and the aluminum foil layer (31) are filled with uniformly distributed silicone strips (4).

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