CN223218018U - A high insulation cable - Google Patents

Abstract

The utility model relates to the technical field of power engineering and discloses a high-insulation cable, which comprises a conductor, wherein a composite insulation layer is arranged on the outer wall of the conductor, a shielding layer is fixedly arranged on the outer wall of the composite insulation layer, a sheath layer is fixedly arranged on the outer wall of the shielding layer, the composite insulation layer comprises a first insulation layer, the inner wall of the first insulation layer is fixedly connected with the outer wall of the conductor, a second insulation layer is fixedly arranged on the outer wall of the first insulation layer, a third insulation layer is fixedly arranged on the outer wall of the second insulation layer, the outer wall of the third insulation layer is fixedly connected with the inner wall of the shielding layer, the conductor is made of copper metal, the shielding layer is formed by metal foil and braided metal wires, the composite insulation layer is arranged, and the sheath layer is made of polyvinyl chloride material, so that the cable has excellent insulation performance and good mechanical performance and meets the requirements of a modern power system on high-voltage and high-current transmission.

Description

High-insulation cable

Technical Field

The utility model relates to the technical field of power engineering, in particular to a high-insulation cable.

Background

In modern power systems, cables are used as an important component for transmitting electrical energy, the performance of which directly influences the safe and stable operation of the power system. With the increase of the voltage class and the increase of the transmission capacity of the power system, higher requirements are put on the insulation performance of the cable.

The traditional cable is easy to have the problems of insulation aging and breakdown under the environment of high voltage and high current, which not only affects the reliability of a power system, but also can bring potential safety hazards, and can not meet the requirements of the modern power system on high voltage and high current transmission.

To this end we propose a high insulation cable.

Disclosure of utility model

The utility model mainly solves the technical problems existing in the prior art and provides a high-insulation cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme that the high-insulation cable comprises a conductor, wherein the outer wall of the conductor is provided with a composite insulation layer, the outer wall of the composite insulation layer is fixedly provided with a shielding layer, the outer wall of the shielding layer is fixedly provided with a sheath layer, the composite insulation layer comprises a first insulation layer, the inner wall of the first insulation layer is fixedly connected with the outer wall of the conductor, the outer wall of the first insulation layer is fixedly provided with a second insulation layer, the outer wall of the second insulation layer is fixedly provided with a third insulation layer, and the outer wall of the third insulation layer is fixedly connected with the inner wall of the shielding layer.

Preferably, the conductor is made of copper metal, and has good electric conductivity and mechanical strength.

Preferably, the shielding layer is composed of metal foil and braided metal wires, so that electromagnetic interference can be reduced, and transmission stability of the cable can be improved.

Preferably, the sheath layer is made of polyvinyl chloride material, so that the cable can be protected from the influence of external environment, and the service life of the cable is prolonged.

Preferably, the first insulating layer is made of polyethylene material, has excellent insulating performance, and ensures safe operation of the cable under high voltage.

Preferably, the second insulating layer is made of a cross-linked polyethylene material, so that the insulating performance of the cable is further enhanced, and the cable has good heat resistance and mechanical strength.

Preferably, the third insulating layer is made of fluoroplastic material, so that the cable has certain insulating property, excellent chemical corrosion resistance and high temperature resistance, and stable operation of the cable in a severe environment is ensured.

The utility model provides a high-insulation cable. The beneficial effects are as follows:

1. According to the high-insulation cable, the composite insulation layer is arranged, and the structural design and the material selection of the composite insulation layer are optimized, so that the cable has excellent insulation performance and good mechanical performance, and the requirements of a modern power system on high-voltage and high-current transmission are met.

2. According to the high-insulation cable, the shielding layer is formed by the metal foil and the braided metal wire, so that electromagnetic interference can be reduced, and the transmission stability of the cable is improved.

3. This high insulation cable through having set up the restrictive coating, and the restrictive coating can protect the cable from external environment's influence, extension cable's life.

Drawings

FIG. 1 is a cross-sectional view of the internal structure of the present utility model;

fig. 2 is a cross-sectional view of the internal structure of the composite insulation layer of the present utility model.

The illustration comprises 10 parts of conductors, 11 parts of composite insulating layers, 12 parts of shielding layers, 13 parts of sheath layers, 14 parts of first insulating layers, 15 parts of second insulating layers, 16 parts of third insulating layers.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "inner", "outer", "side", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience in describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The first embodiment is a high-insulation cable, as shown in fig. 1, the cable comprises a conductor 10, the outer wall of the conductor 10 is provided with a composite insulation layer 11, the outer wall of the composite insulation layer 11 is fixedly provided with a shielding layer 12, the outer wall of the shielding layer 12 is fixedly provided with a sheath layer 13, the conductor 10 is made of copper metal and has good conductivity and mechanical strength, the shielding layer 12 is made of metal foil and braided metal wires, electromagnetic interference can be reduced, transmission stability of the cable is improved, the sheath layer 13 is made of polyvinyl chloride materials, the cable can be protected from the influence of external environment, the service life of the cable is prolonged, and the cable has excellent insulation performance and good mechanical performance by optimizing the structural design and material selection of the composite insulation layer 11, so that the requirements of a modern power system on high-voltage and large-current transmission are met.

In the second embodiment, as shown in fig. 2, the composite insulating layer 11 includes a first insulating layer 14, the inner wall of the first insulating layer 14 is fixedly connected with the outer wall of the conductor 10, the outer wall of the first insulating layer 14 is fixedly provided with a second insulating layer 15, the outer wall of the second insulating layer 15 is fixedly provided with a third insulating layer 16, and the outer wall of the third insulating layer 16 is fixedly connected with the inner wall of the shielding layer 12, and by arranging the shielding layer 12, the shielding layer 12 is composed of metal foil and braided metal wires, so that electromagnetic interference can be reduced, and transmission stability of the cable can be improved.

In the third embodiment, on the basis of the first embodiment and the second embodiment, as shown in fig. 2, the material of the first insulating layer 14 is a polyethylene material, so that the insulating performance is excellent, the safe operation of the cable under high voltage is ensured, the material of the second insulating layer 15 is a crosslinked polyethylene material, the insulating performance of the cable is further enhanced, meanwhile, the insulating performance is good in heat resistance and mechanical strength, the material of the third insulating layer 16 is a fluoroplastic material, the insulating performance is certain, the insulating performance is also excellent in chemical corrosion resistance and high temperature resistance, the stable operation of the cable under severe environment is ensured, and the protective sleeve layer 13 is arranged, so that the cable can be protected from the influence of external environment, and the service life of the cable is prolonged.

The working principle of the utility model is mainly based on the synergistic effect of a conductor, a composite insulating layer, a shielding layer and a sheath layer, wherein the conductor 10 is used as the core part of a cable and is responsible for transmitting current, the composite insulating layer 11 is composed of a plurality of insulating layers made of different materials, the safety and reliability of the cable in the high-voltage and high-current transmission process are ensured, the first insulating layer 14 is made of polyethylene materials, has excellent insulating performance, can effectively prevent current leakage, the second insulating layer 15 is made of crosslinked polyethylene materials, further improves the heat resistance and the mechanical strength of the cable, the third insulating layer 16 is made of fluoroplastic materials, has good insulating performance, can resist chemical corrosion and high-temperature environment, ensures the stable operation of the cable under severe conditions, the shielding layer 12 is composed of metal foil and braided metal wires, can effectively shield electromagnetic interference, the utility model reduces the influence of electromagnetic radiation on the transmission performance of the cable, thereby improving the transmission stability of the cable, the sheath layer 13 adopts polyvinyl chloride material, can protect the cable from external environment such as mechanical damage, chemical corrosion, ultraviolet radiation and the like, prolongs the service life of the cable, in practical application, the conductor 10 of the cable ensures the safety and reliability in the high-voltage and high-current transmission process through the multi-layer insulating material of the composite insulating layer 11, the shielding layer 12 effectively reduces electromagnetic interference, improves the transmission stability of the cable, the sheath layer 13 provides additional protection for the cable, so that the cable can adapt to various complex and bad external environments, and in sum, the utility model realizes the comprehensive advantages of high insulation performance, high transmission stability and long service life by optimizing the internal structure and material selection of the cable, the high requirements of the modern power system on the cable performance are met.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. A high-insulation cable, comprising a conductor (10), characterized in that: the outer wall of the conductor (10) is provided with a composite insulating layer (11), the outer wall of the composite insulating layer (11) is fixedly mounted with a shielding layer (12), the outer wall of the shielding layer (12) is fixedly mounted with a sheath layer (13), the composite insulating layer (11) comprises a first insulating layer (14), and the inner wall of the first insulating layer (14) is fixedly connected to the outer wall of the conductor (10), the outer wall of the first insulating layer (14) is fixedly mounted with a second insulating layer (15), the outer wall of the second insulating layer (15) is fixedly mounted with a third insulating layer (16), and the outer wall of the third insulating layer (16) is fixedly connected to the inner wall of the shielding layer (12). 2. The high-insulation cable according to claim 1, characterized in that the conductor (10) is made of copper metal. 3. The high-insulation cable according to claim 1, characterized in that the shielding layer (12) is composed of metal foil and braided metal wires. 4. The high-insulation cable according to claim 1, characterized in that the sheath layer (13) is made of polyvinyl chloride. 5. The high-insulation cable according to claim 1, characterized in that the first insulation layer (14) is made of polyethylene material. 6. The high-insulation cable according to claim 1, characterized in that the second insulation layer (15) is made of cross-linked polyethylene material. 7. The high-insulation cable according to claim 1, characterized in that the third insulation layer (16) is made of fluoroplastic material.