Industrial grade sensor connection cable

Abstract

The utility model discloses an industrial grade sensor connecting cable, include: at least 2 signal transmission core wire, at least 2 power core wire, ground wire and outer sheath, signal transmission core wire, power core wire each all include the conductor that is twisted from the multiple conductive fine filaments, set in the conductor outside's glass fiber braided layer and the foamed insulation layer that is tightly covered in glass fiber braided layer outside, signal transmission core wire's foamed insulation layer outside covers a first inner shielding layer, power core wire's foamed insulation layer outside covers a second inner shielding layer, first inner shielding layer further includes metal braided layer and respectively sets up in the elastic base material layer of metal braided layer both sides, between metal braided layer and elastic base material layer through the bonding connection. The utility model can improve the stability of the overall anti -interference performance and long -term use process shielding performance, also can improve long -term use, long -distance transmission process signal attenuation, improve transmission performance.

Description

Technical Field

[0001] This utility model relates to an industrial-grade sensor connection cable, belonging to the field of advanced manufacturing and automation technology. Background Technology

[0002] As factories evolve and continue to focus on improving efficiency, productivity, and reliability, Industrial Internet of Things (IIoT) sensors are increasingly enabling automated industrial operations. Sensor cables are traditionally used to connect sensors and actuators in automation technologies, and their transmission performance significantly impacts signal transmission. However, many commercially available sensor cables suffer from limited transmission distances, significant transmission attenuation over long distances, and unstable interference resistance, failing to meet the complex requirements of industrial manufacturing. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an industrial-grade sensor connection cable. This industrial-grade sensor connection cable can improve the overall anti-interference performance and shielding performance during long-term use, especially the stability of signal transmission shielding performance. It can also improve signal attenuation during long-term use and long-distance transmission, thereby improving transmission performance.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an industrial-grade sensor connection cable, comprising: at least two signal transmission core wires, at least two power core wires, a ground wire, and an outer sheath. The outer sheath covers the outside of the cable core formed by twisting the signal transmission core wires, power core wires, and the outer sheath. A first outer shielding layer and a second outer shielding layer are stacked sequentially between the cable core and the outer sheath. Each of the signal transmission core wires and the power core wires includes a conductor formed by twisting multiple strands of conductive filaments, a fiberglass braided layer disposed on the outside of the conductor, and a foamed insulation layer tightly covering the outside of the fiberglass braided layer. A first inner shielding layer is covered on the outside of the foamed insulation layer of the signal transmission core wire, and a second inner shielding layer is covered on the outside of the foamed insulation layer of the power core wire. The first inner shielding layer further includes a metal braided layer and elastic substrate layers disposed on both sides of the metal braided layer. The metal braided layer and the elastic substrate layer are connected by adhesive bonding.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, the foamed insulation layer is a foamed polypropylene insulation layer or a foamed polyolefin insulation layer.

[0007] 2. In the above scheme, the conductor is made of multiple strands of bare copper wire or multiple strands of tin-plated copper wire twisted together.

[0008] 3. In the above scheme, the second inner shielding layer is a metal braided shielding layer or an aluminum foil wrapped shielding layer.

[0009] 4. In the above scheme, the first outer shielding layer is a metal braided shielding layer, and the second outer shielding layer is formed by overlapping double-sided aluminum foil strips wrapped around the outside of the first outer shielding layer.

[0010] 5. In the above scheme, the outer sheath is a polyurethane sheath.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model relates to an industrial-grade sensor connection cable. A first outer shielding layer and a second outer shielding layer are stacked sequentially between the cable core and the outer sheath. Each of the signal transmission core and the power core includes a conductor made of multiple strands of conductive filaments twisted together, a fiberglass braided layer disposed on the outside of the conductor, and a foamed insulation layer tightly wrapped around the outside of the fiberglass braided layer. A first inner shielding layer covers the outside of the foamed insulation layer of the signal transmission core, and a second inner shielding layer covers the outside of the foamed insulation layer of the power core. The first inner shielding layer further includes a metal braided layer and elastic substrate layers disposed on both sides of the metal braided layer. The metal braided layer and the elastic substrate layers are bonded together. While ensuring lightweight and good bending resistance, the combination of the foamed insulation layer and the inner and outer shielding layers, as well as the signal transmission and power transmission shielding layers, improves the overall anti-interference performance and the shielding performance during long-term use, especially the stability of the signal transmission shielding performance. It also improves signal attenuation during long-term use and long-distance transmission, thereby enhancing transmission performance. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of the industrial-grade sensor connection cable of this utility model;

[0014] Appendix Figure 2 This is an enlarged schematic diagram of the structure of the first inner shielding layer in the connecting cable of this utility model.

[0015] In the above attached diagram: 1. Signal transmission core wire; 2. Power core wire; 3. Ground wire; 4. Outer sheath; 5. First outer shielding layer; 6. Second outer shielding layer; 7. First inner shielding layer; 71. Metal braided layer; 72. Elastic substrate layer; 81. Conductor; 82. Fiberglass braided layer; 83. Foamed insulation layer; 9. Second inner shielding layer. Detailed Implementation

[0016] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0017] Example 1: An industrial-grade sensor connection cable, comprising: at least two signal transmission core wires 1, at least two power core wires 2, a ground wire 3, and an outer sheath 4. The outer sheath 4 covers the outside of the cable core formed by twisting the signal transmission core wires 1, the power core wires 2, and the outer sheath 4. A first outer shielding layer 5 and a second outer shielding layer 6 are stacked sequentially between the cable core and the outer sheath 4. Each of the signal transmission core wires 1 and the power core wires 2 includes a conductor 81 formed by twisting multiple strands of conductive filaments, a fiberglass braided layer 82 disposed on the outside of the conductor 81, and a layer tightly wrapped around the fiberglass braided layer 82. The outer foamed insulation layer 83 of the signal transmission core wire 1 is covered with a first inner shielding layer 7, and the outer foamed insulation layer 83 of the power core wire 2 is covered with a second inner shielding layer 9. The signal transmission and power transmission are shielded respectively, which can further reduce the impact of cable transmission on signal transmission and has better anti-electromagnetic interference performance. The first inner shielding layer 7 further includes a metal braided layer 71 and elastic substrate layers 72 respectively disposed on both sides of the metal braided layer 71. The metal braided layer 71 and the elastic substrate layer 72 are connected by adhesive.

[0018] The aforementioned foamed insulation layer 83 is a foamed polypropylene insulation layer; the aforementioned conductor 81 is made of multiple strands of bare copper wire twisted together;

[0019] The second inner shielding layer 9 is a metal braided shielding layer; the first outer shielding layer 5 is a metal braided shielding layer; and the second outer shielding layer 6 is formed by overlapping and wrapping double-sided aluminum foil strips around the outside of the first outer shielding layer 5.

[0020] The outer sheath 4 mentioned above is a polyurethane sheath, preferably a high-strength, scratch-resistant polyether-type flame-retardant polyurethane.

[0021] Example 2: An industrial-grade sensor connection cable, comprising: at least two signal transmission core wires 1, at least two power core wires 2, a ground wire 3, and an outer sheath 4. The outer sheath 4 covers the outside of the cable core formed by twisting the signal transmission core wires 1, power core wires 2, and outer sheath 4. A first outer shielding layer 5 and a second outer shielding layer 6 are stacked sequentially between the cable core and the outer sheath 4. Each of the signal transmission core wires 1 and power core wires 2 includes a conductor 81 formed by twisting multiple strands of conductive filaments. The signal transmission core wire 1 has an outer fiberglass braided layer 82 and a foamed insulation layer 83 tightly wrapped around the outer side of the fiberglass braided layer 82. The outer side of the foamed insulation layer 83 of the signal transmission core wire 1 is covered with a first inner shielding layer 7, and the outer side of the foamed insulation layer 83 of the power core wire 2 is covered with a second inner shielding layer 9. The first inner shielding layer 7 further includes a metal braided layer 71 and elastic substrate layers 72 respectively disposed on both sides of the metal braided layer 71. The metal braided layer 71 and the elastic substrate layer 72 are connected by adhesive bonding.

[0022] The aforementioned foamed insulation layer 83 is a foamed polyolefin insulation layer, which has a low dielectric constant and can still maintain transmission characteristics after long-term aging. The characteristic impedance is guaranteed to be 120Ω by controlling the outer diameter of the insulation, and the transmission distance can exceed 300 meters. It also has low attenuation over long distance transmission. The aforementioned conductor 81 is made of multiple strands of tin-plated copper wire, using Category 6 ultra-fine oxygen-free copper conductor and 0.10~0.15mm fine copper wire. It has a positive and negative composite stranded structure with Z-direction and S-direction strands, and the whole has high flexibility and high bending resistance.

[0023] The second inner shielding layer 9 is an aluminum foil wrapped shielding layer; the first outer shielding layer 5 is a metal braided shielding layer; and the second outer shielding layer 6 is formed by overlapping double-sided aluminum foil wrapped around the outside of the first outer shielding layer 5.

[0024] Further explanation: This application only improves the structure of the cable. The improved cable structure can be produced and processed using existing production equipment and corresponding product lines. Therefore, the processing procedure is not described in detail.

[0025] The aforementioned industrial-grade sensor connection cable, while ensuring lightweight and good bending resistance, improves overall anti-interference performance and shielding performance during long-term use, especially the stability of signal transmission shielding performance, through the combination of foam insulation layer, inner and outer shielding layers, and signal transmission and power transmission shielding layers. It also improves signal attenuation during long-term use and long-distance transmission, thereby enhancing transmission performance.

[0026] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An industrial grade sensor connection cable comprising: The cable core consists of at least two signal transmission cores (1), at least two power cores (2), a ground wire (3), and an outer sheath (4). The outer sheath (4) covers the outside of the cable core formed by twisting the signal transmission cores (1), the power cores (2), and the outer sheath (4). The cable core is characterized by having a first outer shielding layer (5) and a second outer shielding layer (6) stacked sequentially between the cable core and the outer sheath (4). Each of the signal transmission cores (1) and the power cores (2) includes a conductor (81) formed by twisting multiple strands of conductive filaments and a glass fiber braid disposed on the outside of the conductor (81). The signal transmission core wire (1) has a first inner shielding layer (7) covering the outer side of the foam insulation layer (83) and a foam insulation layer (83) tightly wrapped around the outside of the glass fiber braided layer (82). The power core wire (2) has a second inner shielding layer (9) covering the outer side of the foam insulation layer (83). The first inner shielding layer (7) further includes a metal braided layer (71) and an elastic substrate layer (72) respectively disposed on both sides of the metal braided layer (71). The metal braided layer (71) and the elastic substrate layer (72) are connected by adhesive bonding.

2. The industrial grade sensor connection cable of claim 1, wherein: The foamed insulation layer (83) is a foamed polypropylene insulation layer or a foamed polyolefin insulation layer.

3. The industrial grade sensor connection cable of claim 1, wherein: The conductor (81) is made of multiple strands of bare copper wire or multiple strands of tin-plated copper wire twisted together.

4. The industrial grade sensor connection cable of claim 1, wherein: The second inner shielding layer (9) is a metal braided shielding layer or an aluminum foil wrapped shielding layer.

5. The industrial grade sensor connection cable of claim 1, wherein: The first outer shielding layer (5) is a metal braided shielding layer, and the second outer shielding layer (6) is formed by overlapping double-sided aluminum foil strips wrapped around the outside of the first outer shielding layer (5).

6. The industrial grade sensor connection cable of claim 1, wherein: The outer sheath (4) is a polyurethane sheath.

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