CN218159716U

CN218159716U - Overload self-repairing protection cable

Info

Publication number: CN218159716U
Application number: CN202222667696.6U
Authority: CN
Inventors: 黄小龙; 周国庆; 凌前忠; 秦辉; 钱灵敏
Original assignee: Jiangxi Xinji Cable Co ltd
Current assignee: Jiangxi Xinji Cable Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2022-12-27
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses an overload self-repairing protection cable, which comprises a cable core, a compression-resistant sleeve core arranged outside the cable core and a comprehensive sheath, wherein the cable core consists of four insulated wires, each insulated wire consists of a filling core strip, a conductor coaxially extruded outside the filling core strip, an insulating layer and a protective layer, and a filling core strip is also arranged between adjacent insulated wires; the comprehensive sheath is extruded outside the compression-resistant sheath core and the cable core and comprises an inner sheath layer, a protective weaving layer, an anti-impact layer and an outer sheath layer which are coaxially extruded from inside to outside in sequence. The utility model discloses structural design is unreasonable among the prior art, be difficult to the imperial external force scheduling problem improve, the utility model has the advantages of promote crushing resistance, excellent weatherability, anti ozone, anti chemical corrosion and ageing resistance ability.

Description

Overload self-repairing protection cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to an overload selfreparing protection cable.

Background

The cable is used for transmitting electric (magnetic) energy, information and realizing wire products of electromagnetic energy conversion, and can be defined as follows: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. The existing overload self-repairing protection cable is single in structural design, difficult to resist external force when used in an actual working environment, not good in weather resistance and easy to accelerate aging of wires and cables.

To above technical problem, the utility model discloses an overload selfreparing protection cable, the utility model has the advantages of promote crushing resistance, excellent weatherability, anti ozone, anti chemical corrosion and ageing resistance ability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an overload self-repairing protection cable which has the advantages of pressure resistance improvement, excellent weather resistance, ozone resistance, chemical corrosion resistance, aging resistance and the like; to solve the problems posed in the prior art.

The utility model discloses a following technical scheme realizes: the utility model discloses an overload self-repairing protection cable, which comprises a cable core, a compression-resistant sleeve core arranged outside the cable core and a comprehensive sheath, wherein the cable core consists of four insulated wires, each insulated wire consists of a filling core strip, a conductor coaxially extruded outside the filling core strip, an insulating layer and a protective layer, and a filling core strip is also arranged between adjacent insulated wires; the comprehensive sheath is extruded outside the compression-resistant sheath core and the cable core, and comprises an inner sheath layer, a protective weaving layer, an impact-resistant layer and an outer sheath layer which are coaxially extruded from inside to outside in sequence.

Furthermore, in order to improve the strength of the outer layer of the cable, the anti-impact layer comprises a plurality of arched buffering ring strips wound on the protective woven layer and a pressure-resistant core arranged in the arched buffering ring strips, the arched buffering ring strips are made of high-strength elastomer materials, and the pressure-resistant core is made of silicon rubber materials.

Furthermore, in order to enable the cable to have a good compression-resistant effect, the compression-resistant sleeve core is attached to the surface of the insulated conductor and is made of a high-strength elastomer material, a buffer cavity is reserved in the compression-resistant sleeve core, and an elastic supporting piece is arranged in the buffer cavity.

Furthermore, in order to enable the cable to have better flame retardance, the protective woven layer and the filling core strip are made of aramid fibers.

Furthermore, in order to ensure that the high-frequency insulating property of the cable is excellent and the insulating property is not influenced by humidity, the inner protection layer is made of ethylene propylene rubber material.

Furthermore, in order to enable the cable to have excellent weather resistance, ozone resistance, chemical corrosion resistance and aging resistance, the outer sheath layer is made of chlorinated polyethylene materials.

Further, in order to make the cable have self-protection performance, the protective layer is made of PTC materials.

The utility model has the advantages of it is following:

(1) The utility model discloses a cable core comprises insulated conductor and the packing core strip of establishing between adjacent insulated conductor, the inside center of insulated conductor also is equipped with the packing core strip, still include by interior outer crowded package in the outer insulating layer of packing core strip and PTC material protective layer, the packing core strip is made for aramid fiber, aramid fiber's dielectric constant is very low, its inherent dielectric strength makes it at high temperature, low temperature and high wet condition keep excellent electrical insulation nature down, still have better fire resistance, the protective layer adopts the PTC material to make, the PTC material is the temperature sensing material that has positive temperature coefficient effect, it has the temperature automatic control, safety and reliability, advantages such as energy saving and consumption reduction, and the general simple structure of PTC material, light in weight, high reliability.

(2) The utility model discloses well ethylene-propylene rubber material inner sheath, aramid fiber protective weaving layer, high strength elastomer material shock resistance layer and chlorinated polyethylene material oversheath layer from interior to exterior crowded package in the outside of resistance to compression cover core and cable core in proper order, the inner sheath of ethylene-propylene rubber material has excellent ageing-resistant characteristic, resistant day hou, water vapor resistant, performance such as ultraviolet resistance, the shock resistance layer is by a plurality of archs buffering ring strip around locating protective weaving layer and locate the anti-pressure core in the arch buffering ring strip, arch buffering ring strip is made by high strength elastomer material, the anti-pressure core is made by silicon rubber materials, make cable outer layer intensity obtain promoting, the oversheath layer adopts chlorinated polyethylene material, have excellent weatherability, ozone resistance, anti chemical corrosion and ageing-resistant performance.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the compression-resistant sleeve core of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a cable core 1; 2. a compression-resistant sleeve core; 3. a comprehensive sheath; 4. an insulated wire; 5. filling the core strip; 6. A conductor; 7. an insulating layer; 8. a protective layer; 9. an inner protective layer; 10. a protective braid layer; 11. an impact resistant layer; 12. an outer jacket layer; 13. an arched buffering ring strip; 14. a compression resistant core; 15. a buffer chamber; 16. an elastic support member.

Detailed Description

The following is a detailed description of the embodiments of the present invention, which is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments, in the description of the present invention, words like "front", "back", "left", "right", etc. indicating directions or position relationships are only for convenience of description of the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation of the present invention.

The utility model provides a technical scheme: a overload self-repairing protection cable is shown in figures 1 to 3 and comprises a cable core 1, a compression-resistant sleeve core 2 and a comprehensive sheath 3, wherein the compression-resistant sleeve core 2 is arranged outside the cable core 1, the cable core 1 consists of four insulated wires 4, each insulated wire 4 consists of a filling core bar 5, a conductor 6, an insulating layer 7 and a protective layer 8, the conductors are coaxially extruded outside the filling core bar 5, and one filling core bar 5 is also arranged between every two adjacent insulated wires 4; the comprehensive sheath 3 is extruded outside the compression-resistant sheath core 2 and the cable core 1, and the comprehensive sheath 3 comprises an inner sheath layer 9, a protective weaving layer 10, an impact-resistant layer 11 and an outer sheath layer 12 which are coaxially extruded from inside to outside in sequence.

As shown in fig. 3, the impact resistant layer 11 is composed of a plurality of arch buffer ring strips 13 wound around the protective woven layer 10 and a compression resistant core 14 arranged in the arch buffer ring strips 13, the arch buffer ring strips 13 are all made of high-strength elastomer materials, and the compression resistant core 14 is made of silicon rubber materials, so that the strength of the outer layer of the cable is improved.

As shown in fig. 1, the compression-resistant sheath core 2 is attached to the surface of the insulated conductor 4, the compression-resistant sheath core 2 is made of a high-strength elastomer material, a buffer cavity 15 is reserved in the compression-resistant sheath core 2, and an elastic support member 16 is arranged in the buffer cavity 15, so that the compression-resistant sheath core has better compression resistance.

As shown in fig. 1 and 3, the protective woven layer 10 and the filling core strip 5 are made of aramid fibers, the dielectric constant of the aramid fibers is very low, the inherent dielectric strength of the aramid fibers enables the aramid fibers to maintain excellent electrical insulation under high-temperature, low-temperature and high-humidity conditions, and the aramid fibers also have good flame retardancy.

As shown in fig. 1 and 3, the inner sheath layer 9 is made of ethylene propylene rubber material, and has excellent aging resistance, weather resistance, water vapor resistance, ultraviolet resistance and the like.

As shown in fig. 3, the outer sheath layer 12 is made of chlorinated polyethylene, and has excellent weather resistance, ozone resistance, chemical corrosion resistance and aging resistance.

As shown in fig. 1, the protection layer 8 is made of PTC material, which is a heat-sensitive material with positive temperature coefficient effect, and has the advantages of automatic temperature control, safety, reliability, energy saving, consumption reduction, etc., and the PTC material has a simple structure, light weight and high reliability.

The principle of the utility model is as follows: the cable core 1 consists of insulated wires 4 and filling core bars 5 arranged between the adjacent insulated wires 4, the filling core bars 5 are also arranged at the center inside the insulated wires 4, the cable further comprises an insulating layer 7 and a PTC material protective layer 8, the insulating layer 7 is extruded outside the filling core bars 5 from the inside and the outside, the filling core bars 5 are made of aramid fibers, the dielectric constant of the aramid fibers is very low, the intrinsic dielectric strength of the aramid fibers enables the aramid fibers to keep excellent electric insulation under the conditions of high temperature, low temperature and high humidity, the cable core also has better flame retardance, the PTC material adopted by the protective layer 8 is a thermosensitive material with positive temperature coefficient effect, the cable core has the advantages of temperature self-control, safety and reliability, energy conservation and consumption reduction, and the like, and the PTC material is generally simple in structure, light in weight and high in reliability, the inner sheath layer 9 of the ethylene propylene rubber material, the protective weaving layer 10 of the aramid fiber, the impact resistant layer 11 of the high-strength elastomer material and the outer sheath layer 12 of the chlorinated polyethylene material are sequentially extruded outside the pressure-resistant sheath core 2 and the cable core 1 from inside to outside, the inner sheath layer 9 of the ethylene propylene rubber material has excellent aging resistance, weather resistance, water vapor resistance, ultraviolet resistance and other performances, the impact resistant layer 11 is composed of a plurality of arched buffer ring strips 13 wound on the protective weaving layer 10 and pressure-resistant cores 14 arranged in the arched buffer ring strips 13, the arched buffer ring strips 13 are all made of the high-strength elastomer material, the pressure-resistant cores 14 are made of silicon rubber materials, the strength of the outer layer of the cable is improved, and the outer sheath layer 12 is made of the chlorinated polyethylene material and has excellent weather resistance, ozone resistance, chemical corrosion resistance and aging resistance.

Claims

1. A overload self-repairing protection cable comprises a cable core, a compression-resistant sleeve core and a comprehensive sheath, wherein the compression-resistant sleeve core is arranged outside the cable core; the comprehensive sheath is extruded outside the compression-resistant sheath core and the cable core, and comprises an inner sheath layer, a protective weaving layer, an impact-resistant layer and an outer sheath layer which are coaxially extruded from inside to outside in sequence.

2. The overload self-repairing protection cable of claim 1, wherein the impact resistant layer is formed by a plurality of arched buffer ring strips wound around the protective woven layer and a compression resistant core arranged in the arched buffer ring strips, the arched buffer ring strips are made of high-strength elastomer materials, and the compression resistant core is made of silicon rubber materials.

3. The overload self-repairing protection cable of claim 1, wherein the compression-resistant sheath core is attached to the surface of the insulated conductor, the compression-resistant sheath core is made of a high-strength elastomer material, a buffer cavity is reserved in the compression-resistant sheath core, and an elastic support member is arranged in the buffer cavity.

4. The overload self-repairing protection cable of claim 1, wherein the protective braided layer and the filling core strip are made of aramid fibers.

5. The overload self-repairing protection cable of claim 1, wherein the inner sheath is made of ethylene propylene rubber.

6. The overload self-repairing protection cable of claim 1, wherein the outer sheath layer is made of a chlorinated polyethylene material.

7. The overload self-repairing protection cable of claim 1, wherein the protective layer is made of PTC material.