Reinforced light multi-core control cable

Abstract

The utility model relates to the technical field of control cables, in particular to a reinforced light multi-core control cable which comprises an inner conductor, a first filling layer is fixedly connected to the outer side of the inner conductor, a plurality of differential wire cores are fixedly connected to the outer side of the first filling layer, shielding layers are fixedly connected to the outer sides of the differential wire cores, and the shielding layers are fixedly connected to the outer side of the inner conductor. A connection layer is fixedly connected between the shielding layers, and the outer side of the differential wire core is fixedly connected with a second filling layer. Compared with the prior art, the multi-core cable has the advantages that the shielding layer is arranged on the outer side of each differential wire core, external electromagnetic interference on the differential wire cores is reduced, stability and safety of signal transmission are protected, mutual interference among the differential wire cores can be avoided, the signal strength of the multi-core cable is improved, and the service life of the multi-core cable is prolonged. The first filling layer is made of light magnesium oxide, and the light magnesium oxide has the remarkable characteristics of high content, low impurity content, good stability, good dispersity, fine granularity and the like, so that the insulating property of the cable can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control cables, in particular to a reinforced lightweight multi-core control cable. Background Art

[0002] Control cables are used as connecting lines between various electrical appliances, instruments, meters and automatic devices. They play the role of transmitting various electrical energy signals such as startup, operation, control, signal display, and measurement. They are widely used in the control, measurement, signal transmission, alarm and interlocking systems of industrial and mining enterprises, substations, transportation, science and technology and other departments.

[0003] The attenuation-suppressed reinforced lightweight multi-core control cable disclosed in Chinese patent CN202320444483.9 has high strength, high modulus and better flexibility. A conductive fiber bundle is arranged on a supporting mesh. The conductive fiber bundle is formed by twisting polyacrylonitrile-based carbon fibers and coating them with a copper conductive coating. It can effectively replace the metal shielding layer, reduce weight, reduce costs, and achieve lightweight production. However, the differential signal cores of the attenuation-suppressed reinforced lightweight multi-core control cable are distributed in a ring shape inside the cable without further limitation. When the cable is split, the differential signal cores will spread out, making it inconvenient to perform wiring and other operations. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a reinforced lightweight multi-core control cable, which effectively solves the deficiencies of the prior art.

[0005] The purpose of the utility model is achieved through the following technical scheme: a reinforced lightweight multi-core control cable, comprising an inner conductor, a first filling layer is fixedly connected to the outer side of the inner conductor, a plurality of differential cores are fixedly connected to the outer side of the first filling layer, shielding layers are fixedly connected to the outer sides of the differential cores, a connecting layer is fixedly connected between the shielding layers, a second filling layer is fixedly connected to the outer side of the differential cores, an inner sheath layer is fixedly connected to the outer side of the second filling layer, a third filling layer is fixedly connected to the outer side of the inner sheath layer, and an outer sheath layer is fixedly connected to the outer side of the third filling layer.

[0006] Optionally, the shielding layer is made of a braided copper mesh, the connecting layer is arranged at the gap of the shielding layer, and the connecting layer is in an arc shape.

[0007] The above technical solution is adopted: by setting a shielding layer on the outside of each differential core, the differential core is reduced from external electromagnetic interference, the stability and security of signal transmission are protected, and mutual interference between the differential cores can be avoided, thereby improving the signal strength of the multi-core cable.

[0008] Optionally, the first filling layer is made of lightweight magnesium oxide, and the first filling layer is located between the inner conductor and the differential core.

[0009] The above technical solution is adopted: by setting the first filling layer to light magnesium oxide, light magnesium oxide has the remarkable characteristics of high content, low impurity content, good stability, good dispersibility, fine particle size, etc., which can effectively improve the insulation performance of the cable and has flame retardant properties. While fully separating and insulating the inner conductor and the differential core, it can reduce the overall quality of the cable, making the cable wiring operation more convenient and labor-saving.

[0010] Optionally, the second filling layer and the third filling layer are made of polypropylene, and the outer shapes of the second filling layer and the third filling layer are both circular.

[0011] The above technical solution is adopted: by arranging a second filling layer of polypropylene material on the outside of the differential core, the core inside the cable is fully protected. Polypropylene has excellent electrical and mechanical properties, strong corrosion resistance and heat resistance, and can provide excellent protection and insulation effects. In addition, the density of polypropylene is low, and the manufactured cable is lightweight and easy to transport and install.

[0012] Optionally, the inner sheath layer and the outer sheath layer are both made of styrene-butadiene rubber, the interior of the outer sheath layer is filled with nylon ropes, and the nylon ropes are distributed in an annular shape and at equal intervals inside the outer sheath layer.

[0013] The above technical solution is adopted: by setting an inner sheath layer and an outer sheath layer of styrene-butadiene rubber, which has good elasticity and cold resistance, can have excellent protection effect in low temperature environment, and is light in weight, highlighting the lightweight characteristics of the cable. Setting nylon rope inside the outer sheath layer can improve the overall toughness of the outer sheath layer, improve the overall protection strength of the cable, improve the cable's ability to withstand external mechanical force destruction and damage, and extend the service life of the cable.

[0014] The utility model has the following advantages:

[0015] 1. The reinforced lightweight multi-core control cable sets a shielding layer on the outside of each differential core to reduce the external electromagnetic interference of the differential core, protect the stability and safety of signal transmission, and avoid mutual interference between the differential cores, thereby improving the signal strength of the multi-core cable. The first filling layer is set to lightweight magnesium oxide, which has the remarkable characteristics of high content, low impurity content, good stability, good dispersibility, fine particle size, etc., which can effectively improve the insulation performance of the cable and has flame retardant properties. While fully separating and insulating the inner conductor and the differential core, it can reduce the overall quality of the cable, making the cable wiring operation more convenient and labor-saving.

[0016] 2. This reinforced lightweight multi-core control cable fully protects the cores inside the cable by setting a second filling layer of polypropylene material on the outside of the differential core. Polypropylene has excellent electrical and mechanical properties, strong corrosion resistance and heat resistance, and can provide excellent protection and insulation effects. In addition, the density of polypropylene is low, and the cable made is lightweight and easy to transport and install.

[0017] 3. The reinforced lightweight multi-core control cable has good elasticity and cold resistance by setting an inner sheath layer and an outer sheath layer of styrene-butadiene rubber. It can have excellent protection effect in low temperature environment and is light in weight, highlighting the lightweight characteristics of the cable. The nylon rope is set inside the outer sheath layer to improve the overall toughness of the outer sheath layer, improve the overall protection strength of the cable, improve the cable's ability to withstand external mechanical damage and damage, and extend the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] In the figure: 1-inner conductor, 2-first filling layer, 3-differential core, 4-shielding layer, 5-connection layer, 6-second filling layer, 7-inner sheath layer, 8-third filling layer, 9-outer sheath layer, 10-nylon rope. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] like Figure 1 As shown, a reinforced lightweight multi-core control cable includes an inner conductor 1, a first filling layer 2 is fixedly connected to the outer side of the inner conductor 1, a plurality of differential cores 3 are fixedly connected to the outer side of the first filling layer 2, shielding layers 4 are fixedly connected to the outer sides of the differential cores 3, connecting layers 5 are fixedly connected between the shielding layers 4, a second filling layer 6 is fixedly connected to the outer side of the differential cores 3, an inner sheath layer 7 is fixedly connected to the outer side of the second filling layer 6, a third filling layer 8 is fixedly connected to the outer side of the inner sheath layer 7, and an outer sheath layer 9 is fixedly connected to the outer side of the third filling layer 8.

[0022] Embodiment 1: The shielding layer 4 is made of a braided copper mesh, and the connecting layer 5 is arranged at the gap of the shielding layer 4. The connecting layer 5 is arc-shaped. By arranging a shielding layer on the outside of each differential core 3, the differential core is less susceptible to external electromagnetic interference, the stability and security of signal transmission are protected, and mutual interference between the differential cores can be avoided, thereby improving the signal strength of the multi-core cable.

[0023] Embodiment 2: The material of the first filling layer 2 is light magnesium oxide, and the first filling layer 2 is located between the inner conductor 1 and the differential core 3. By setting the first filling layer 2 to light magnesium oxide, the light magnesium oxide has the remarkable characteristics of high content, low impurity content, good stability, good dispersibility, fine particle size, etc., which can effectively improve the insulation performance of the cable and has flame retardant properties. While fully separating and insulating the inner conductor 1 and the differential core 3, it can reduce the overall quality of the cable, making the cable wiring operation more convenient and labor-saving.

[0024] Embodiment 3: The second filling layer 6 and the third filling layer 8 are made of polypropylene, and the outer shapes of the second filling layer 6 and the third filling layer 8 are both circular. By arranging the second filling layer 6 and the second filling layer 8 made of polypropylene on the outer side of the differential core 3, the core in the cable is fully protected. Polypropylene has excellent electrical and mechanical properties, strong corrosion resistance and heat resistance, and can provide excellent protection and insulation effects. In addition, the density of polypropylene is relatively low, and the manufactured cable is lightweight and convenient to transport and install.

[0025] Embodiment 4: The material of the inner sheath layer 7 and the outer sheath layer 9 are both styrene-butadiene rubber, and the interior of the outer sheath layer 9 is filled with nylon rope 10. The nylon rope 10 is distributed equidistantly in a circular shape inside the outer sheath layer 9. By setting the inner sheath layer 7 and the outer sheath layer of styrene-butadiene rubber, it has good elasticity and cold resistance, can have excellent protection effect in low temperature environment, and is light in weight, highlighting the lightweight characteristics of the cable. The nylon rope 10 is set inside the outer sheath layer 9 to improve the overall toughness of the outer sheath layer 9, improve the overall protection strength of the cable, improve the cable's ability to withstand external mechanical damage and damage, and extend the service life of the cable.

[0026] The working principle of the utility model is as follows:

[0027] S1. A shielding layer is arranged on the outside of each differential core 3 to reduce the external electromagnetic interference of the differential core, protect the stability and security of signal transmission, and avoid mutual interference between the differential cores, thereby improving the signal strength of the multi-core cable;

[0028] S2. The first filling layer 2 is set to be light magnesium oxide. Light magnesium oxide has the remarkable characteristics of high content, low impurity content, good stability, good dispersibility, fine particle size, etc. It can effectively improve the insulation performance of the cable and has flame retardant properties. While fully separating and insulating the inner conductor 1 and the differential core 3, it can reduce the overall quality of the cable, making the cable wiring operation more convenient and labor-saving.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The reinforced lightweight multi-core control cable, by arranging a shielding layer on the outside of each differential core 3, reduces the external electromagnetic interference of the differential core, protects the stability and safety of signal transmission, and can avoid mutual interference between the differential cores, thereby improving the signal strength of the multi-core cable. By setting the first filling layer 2 to lightweight magnesium oxide, lightweight magnesium oxide has the remarkable characteristics of high content, low impurity content, good stability, good dispersibility, fine particle size, etc., which can effectively improve the insulation performance of the cable and has flame retardant properties. While fully separating and insulating the inner conductor 1 and the differential core 3, it can reduce the overall quality of the cable, making the cable wiring operation more convenient and labor-saving.

[0031] 2. The reinforced lightweight multi-core control cable fully protects the cores in the cable by arranging a second filling layer 6 and a second filling layer 8 made of polypropylene on the outside of the differential core 3. Polypropylene has excellent electrical and mechanical properties, strong corrosion resistance and heat resistance, and can provide excellent protection and insulation effects. In addition, the density of polypropylene is low, and the manufactured cable is lightweight and convenient for transportation and installation.

[0032] 3. The reinforced lightweight multi-core control cable has good elasticity and cold resistance by setting an inner sheath layer 7 and an outer sheath layer of styrene-butadiene rubber, can have excellent protection effect in low temperature environment, and is light in weight, highlighting the lightweight characteristics of the cable. The nylon rope 10 is set inside the outer sheath layer 9 to improve the overall toughness of the outer sheath layer 9, improve the overall protection strength of the cable, improve the cable's ability to withstand external mechanical damage and damage, and extend the service life of the cable.

Claims

1. A reinforced lightweight multi-core control cable, characterized in that: The invention comprises an inner conductor (1), wherein a first filling layer (2) is fixedly connected to the outer side of the inner conductor (1), a plurality of differential cores (3) are fixedly connected to the outer side of the first filling layer (2), shielding layers (4) are fixedly connected to the outer side of the differential cores (3), a connecting layer (5) is fixedly connected between the shielding layers (4), a second filling layer (6) is fixedly connected to the outer side of the differential cores (3), an inner sheath layer (7) is fixedly connected to the outer side of the second filling layer (6), a third filling layer (8) is fixedly connected to the outer side of the inner sheath layer (7), and an outer sheath layer (9) is fixedly connected to the outer side of the third filling layer (8).

2. A reinforced lightweight multi-core control cable according to claim 1, characterized in that: The shielding layer (4) is made of a braided copper mesh, the connecting layer (5) is arranged at the gap of the shielding layer (4), and the connecting layer (5) is in an arc shape.

3. A reinforced lightweight multi-core control cable according to claim 2, characterized in that: The material of the first filling layer (2) is light magnesium oxide, and the first filling layer (2) is located between the inner conductor (1) and the differential core (3).

4. A reinforced lightweight multi-core control cable according to claim 3, characterized in that: The second filling layer (6) and the third filling layer (8) are made of polypropylene, and the outer shapes of the second filling layer (6) and the third filling layer (8) are both circular.

5. A reinforced lightweight multi-core control cable according to claim 4, characterized in that: The inner sheath layer (7) and the outer sheath layer (9) are both made of styrene-butadiene rubber; the interior of the outer sheath layer (9) is filled with nylon ropes (10); the nylon ropes (10) are distributed in an annular shape and at equal intervals inside the outer sheath layer (9).

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