CN201117367Y - Superconducting cables for military equipment - Google Patents

Abstract

The utility model discloses a superconductive cable used in military industrial equipment, comprising a plurality of cores, an outer copper wire mesh braid and a serving. The core comprises a conductor and a first insulating layer coated the conductor. The core at least comprises a main core. The main core also comprises an inner copper wire mesh braid and a second insulating layer. The inner copper wire mesh braid is braided on the periphery of the first insulating layer. The inner copper wire mesh braid is coated by the second insulating layer. The cores are intertwisted into a cable core. The main core is located in the center of the cable core. The cable core is coated by the outer copper wire mesh braid. The outer copper wire mesh braid is coated by the serving. The serving is thermoplastic vulcanite. The military industrial cable of the utility model has rapid transmission speed and good shielding effect. The serving is low-smoke and zero-halogen, which is good for environment protection. The cable has the properties of ultraviolet resistance and cold resistance, and therefore the cable of the utility model is suitable for military industrial equipment operated in outdoor rough environment.

Description

Superconducting cables for military equipment

technical field

The utility model relates to a power cable, in particular to a superconducting cable for military equipment.

Background technique

At present, wires and cables have been widely used in industrial production, transportation, construction engineering and facilities, modern agriculture and scientific research, military equipment or military facilities, space, ocean detection, and have reached a ubiquitous state. With the step-by-step development of social and economic activities from depth to breadth, the varieties of wire and cable are constantly updated and improved, and the production volume continues to increase. For example, the construction of high-intelligence buildings requires computer network cables for hierarchical networking of hundreds or thousands of electronic computers; the establishment of urban public cable TV networks, the universal deposit and withdrawal of all banks in the city and even the country, and the development of online economic exchanges and information exchanges It is necessary to install a broadband cable network for high-reliability transmission; to realize the remote control program launch of military cannons or antiaircraft artillery groups, it is necessary to design control cables suitable for harsh environments in the field.

The application of wire and cable is mainly divided into three categories: power system, information transmission system and mechanical equipment, and instrumentation system. The wire and cable products used in the power system mainly include overhead bare wires, bus bars (bus bars), power cables, rubber sheathed cables, overhead insulated cables), branch cables (replacing part of the bus bars), electromagnetic wires, and electrical equipment wires and cables for power equipment wait. The wires and cables used in the information transmission system mainly include local telephone cables, TV cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communication or other composite cables, etc. Except for overhead bare wires, almost all other products in mechanical equipment and instrumentation systems are used, but mainly power cables, electromagnetic wires, data cables, instrumentation cables, etc.

If the superconducting cable used in military equipment is used as a communication cable, there are high requirements for the real-time and accuracy of the signal. In order to improve the performance of the equipment, while ensuring the signal transmission speed, it is necessary to control the interference from the external electric field and magnetic field. shield. In addition, cables for military equipment are usually used in the field, the working environment is very harsh, the temperature changes greatly and they are directly exposed to ultraviolet rays, so the cables are easily aged and damaged, resulting in equipment failure. At the same time, once the outer layer of the existing conventional cable is aged and damaged, halogens and the like are usually produced, causing environmental pollution. The current general-purpose cables cannot simultaneously meet several main conditions of cables for military equipment such as fast transmission speed, good shielding effect, anti-ultraviolet radiation, anti-aging and environmental protection.

Therefore, it is urgent to provide a cable with fast transmission speed, good shielding effect, anti-ultraviolet, anti-aging and environmental protection to overcome the above defects.

Utility model content

The purpose of the utility model is to provide a superconducting cable for military equipment. The superconducting cable for military equipment has fast transmission speed, good shielding effect, anti-ultraviolet, anti-aging and environmental protection.

In order to achieve the above purpose, the utility model provides a superconducting cable for military equipment, which includes several wire cores, an outer braided layer of copper mesh and an outer layer. The wire core includes a conductor and a first insulation layer covering the conductor, the wire core includes at least one main wire core, and the main wire core also includes an inner copper mesh braiding layer and a second insulation layer. The inner copper mesh braiding layer is braided on the periphery of the first insulating layer, and the second insulating layer wraps the inner copper mesh braiding layer. The cores are stranded to form a cable core, and the main core is located at the center of the cable core. The outer copper mesh braiding layer covers the cable core, the outer coating layer covers the outer copper mesh braiding layer, and the outer coating layer is thermoplastic vulcanized rubber.

In one embodiment of the present invention, the conductor is a silver-plated copper wire.

In yet another embodiment of the present utility model, the material of the first insulating layer is polytetrafluoroethylene plastic. The second insulating layer is polyperfluoroethylene propylene plastic.

In yet another embodiment of the present invention, the inner and outer braided layers of copper mesh are both braided layers of silver-plated copper wires. Preferably, the inner and outer copper mesh braiding layers are both woven by 144 silver-plated copper wires, and the coverage of the braiding is 86%.

In yet another embodiment of the present utility model, there are fifteen wire cores in total, and three main wire cores. Preferably, the conductor of the main core is a silver-plated copper wire with a diameter of 0.64 mm, and the conductors of the other cores are silver-plated copper wires with a diameter of 1.01 mm.

Compared with the prior art, the core of the superconducting cable for military equipment of the present invention is made of a material with low resistance, which can ensure fast signal transmission and reduce signal attenuation; the main core of the cable has inner copper The mesh braiding layer can effectively shield external interference, and the cable core is further covered with an outer copper mesh braiding layer, which can further shield interference and improve the performance of the device; in addition, the main wire core is located in the cable core This structure can not only make the cable smoother and rounder, but also make the main core less likely to be interfered by external signals, further ensuring the real-time and accuracy of signal transmission; the outer layer of the cable is made of thermoplastic vulcanized rubber It is low-smoke and halogen-free, environmentally friendly, UV-resistant, and cold-resistant. Therefore, the cable of the utility model can meet the conditions required for military equipment to work in harsh environments.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

Fig. 1 is a structural diagram of a superconducting cable for military equipment of the present invention.

Fig. 2 is a cross-sectional view of the superconducting cable for military equipment shown in Fig. 1 .

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements. As mentioned above, the utility model aims to provide a superconducting cable for military equipment, which has fast signal transmission, good shielding effect, anti-ultraviolet, anti-aging and environmental protection, and is suitable for military equipment working in harsh environments.

Figures 1-2 show an embodiment of the superconducting cable for military equipment of the present invention. As shown in the figure, the superconducting cable for military equipment includes fifteen wire cores 110 , an outer copper mesh braiding layer 120 and an outer coating layer 130 . The core 110 includes a conductor 111 and a first insulating layer 113 covering the conductor. The fifteen cores 110 include three main cores 110a. The main core 110a also includes an inner copper mesh braiding layer 115 and a second insulating layer 117, the inner copper mesh braiding layer 115 is braided on the periphery of the first insulating layer 113, and the second insulating layer 117 covers the Inner copper mesh braiding layer 115 . These cores 110 and the main core 110a are twisted into a cable core, the main core 110a and one core 110 are located at the center of the cable core, and the remaining cores 110 surround the main core 110a and the central core. The wire cores 110 are arranged. The outer copper mesh braiding layer 120 covers the cable core, the outer coating layer 130 covers the outer copper mesh braiding layer 120 , and the outer coating layer 130 is thermoplastic vulcanized rubber.

In this embodiment, the conductors of the three main cores 110a are silver-plated copper wires. Preferably, the main core 110a adopts three 24AWG wires, the outer diameter of which is about 0.64mm; The diameter is about 1.01mm. The conductors of these cores 110 and the main core 110a are made of materials with low resistance, which can ensure fast transmission of signals and reduce signal attenuation.

The inner copper mesh braiding layer 115 is a silver-plated copper mesh braiding layer. Specifically, the inner copper mesh braiding layer is made of 144 silver-plated copper wires with a wire diameter of 0.16mm. was 86%. The outer copper mesh braiding layer 120 is also a silver-plated copper mesh braiding layer, which is composed of 144 silver-plated copper wires with a wire diameter of 0.16mm interlaced, and the weaving coverage rate is 86%.

Because the utility model adopts double shielding measures, that is, the inner copper mesh braiding layer 113 and the outer copper mesh shielding layer 120, it can effectively shield external interference, prevent external electromagnetic waves from interfering with electronic equipment and industrial equipment, and improve its performance. In addition, the structure where the main core is located at the center of the cable core not only makes the cable smoother and rounder, but also makes the main core less likely to be interfered by external signals, further ensuring the real-time and accuracy of signal transmission.

The first insulating layer 113 is made of polytetrafluoroethylene (PTFE) plastics, which can withstand a high temperature of 250 degrees, and its colors are brown, blue, yellow, red, green, pink, white, gray, black, Orange, fuchsia and natural color are used to distinguish the core, and the thickness is about 0.25mm. The second insulating layer 117 of the main core 110a is made of polyfluoroethylene propylene (FEP) plastic, which can also withstand a high temperature of 200 degrees Celsius, and its colors are red, black, and white, which are used to distinguish the cores. About 0.26mm.

The outer layer 130 of the cable can protect the interior of the entire power cable from mechanical damage and chemical corrosion, and is made of thermoplastic vulcanizate (TPV). The material is low-smoke and halogen-free, environmentally friendly, and resistant to ultraviolet rays and cold, so it can work in harsh environments in the wild. The color of the outer coating layer can be black, and its thickness is about 0.35mm.

The utility model has been described above in conjunction with the best embodiments, but the utility model is not limited to the above-disclosed embodiments, but should cover various modifications and equivalent combinations based on the essence of the utility model.

Claims (9)

1. a superconducting cable for military equipment, comprising several wire cores, outer copper mesh braiding layer and outer coating layer, the wire core includes a conductor and the first insulating layer covering the conductor, it is characterized in that: the The wire core includes at least one main wire core, and the main wire core also includes an inner copper mesh braiding layer and a second insulating layer, the inner copper mesh braiding layer is braided on the periphery of the first insulating layer, and the second insulating layer Coating the inner copper mesh braiding layer, the wire cores are twisted into a cable core, the main wire core is located at the center of the cable core, and the outer copper mesh braiding layer covers the cable The outer coating layer covers the outer copper mesh braiding layer, and the outer coating layer is thermoplastic vulcanized rubber. 2. The superconducting cable for military equipment according to claim 1, wherein the conductor is a silver-plated copper wire. 3. The superconducting cable for military equipment according to claim 1, wherein the first insulating layer is made of polytetrafluoroethylene plastic. 4. The superconducting cable for military equipment according to claim 1, characterized in that: the second insulating layer is polyperfluoroethylene propylene plastic. 5. The superconducting cable for military equipment according to claim 1, characterized in that: the inner and outer braided layers of copper mesh are both braided layers of silver-plated copper wires. 6. The superconducting cable for military equipment according to claim 1, wherein the inner and outer braided layers of copper mesh are both braided by 144 copper wires. 7. The superconducting cable for military equipment according to claim 6, characterized in that: the coverage ratios of the inner and outer braided copper mesh layers are both 86%. 8. The superconducting cable for military equipment according to claim 1, wherein there are fifteen cores in total, and three main cores. 9. The superconducting cable for military equipment as claimed in claim 1, characterized in that: the conductor of the main core is a silver-plated copper wire with a diameter of 0.64 mm, and the conductors of the other cores are wires with a diameter of 1.01 mm. Silver-plated copper wire.

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