CN219534131U

CN219534131U - Multilayer insulated cable

Info

Publication number: CN219534131U
Application number: CN202320821958.1U
Authority: CN
Inventors: 刘利超; 黄贵军; 王文华; 赖明文; 王慧香
Original assignee: Sichuan Xin Dongfang Cable Group Co ltd
Current assignee: Sichuan Xin Dongfang Cable Group Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-08-15
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a multilayer insulated cable, which relates to the technical field of cables and comprises a flame-retardant protective sleeve, wherein the inner wall of the flame-retardant protective sleeve is fixedly connected with a first insulating layer, the inner wall of the first insulating layer is fixedly connected with a second insulating layer, the inner wall of the second insulating layer is fixedly connected with a waterproof layer, the inner wall of the waterproof layer is fixedly connected with a heat conducting ring, and the inner wall of the heat conducting ring is uniformly and fixedly connected with a plurality of ejector blocks. According to the utility model, the plurality of insulating layers on the outer side are separated from the inner jacket in the inner side, so that the inner multilayer structure is not in contact with each other, and the heat dissipation performance of the inner side of the equipment is improved through the heat conducting ring, so that the heat dissipation effect of the equipment is effectively improved, meanwhile, a plurality of cable cores are arranged in the inner side, when a single cable core is damaged at high temperature, the cable cores are prevented from being in contact with each other through insulating particles and the insulating tube, further damage and burning risks are avoided, and the conductive insulating effect of the equipment is improved through the two insulating layers.

Description

Multilayer insulated cable

Technical Field

The utility model relates to the technical field of cables, in particular to a multilayer insulated cable.

Background

The cable is typically a rope-like cable stranded from several wires or groups of wires (at least two per group), each group being insulated from each other and often twisted around a center, the entire outer face being covered with a highly insulating coating, the cable being required to have internal energized, external insulating characteristics.

A multilayer composite insulated cable provided according to patent document (publication No. CN 206833954U), comprising: the copper conductor, conductor shielding layer, insulating layer, metal shielding layer, inner sheath, cushion layer, steel wire armor layer, outer sheath, the conductor shielding layer outside the copper conductor; an insulating layer is arranged between the conductor shielding layer and the metal shielding layer; an outer cushion layer is coated on the inner sheath; the steel wire armor layer is arranged between the cushion layer and the outer sheath, wherein the insulating layer is a combined insulating layer and is composed of two layers of kraft paper and a plurality of layers of polypropylene paper pressing PPLP, and the arrangement sequence is one layer of kraft paper, a plurality of layers of PPLP and one layer of kraft paper, so that the steel wire armor layer is durable.

However, in the above patent, the surfaces of the core wires are in contact with each other, so that heat inside the core wires cannot be timely dissipated, the rise of the temperature inside the cable is aggravated, the core wires inside the cable are arranged as one wire, when the core wires are subjected to high temperature for a long time, the conductive parts inside the core wires are in contact with each other to cause the short circuit, fire is caused, the insulating layer is damaged, the condition of cable leakage can occur, and the danger of electric shock can be brought.

Therefore, it is necessary to provide a multi-layer insulated cable to solve the above problems.

Disclosure of Invention

The present utility model is directed to a multi-layer insulated cable for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multilayer insulated cable, includes fire-retardant lag, fire-retardant lag's inner wall fixedly connected with first insulating layer, the inner wall fixedly connected with second insulating layer of first insulating layer, the inner wall fixedly connected with waterproof layer of second insulating layer, the inner wall fixedly connected with heat conduction ring of waterproof layer, the equal fixedly connected with of inner wall of heat conduction ring a plurality of kicking blocks, a plurality of the common fixedly connected with inner sheath of one side surface of kicking block.

Preferably, the inside of inner sheath is evenly divided and is provided with a plurality of guard rings, and a plurality of the inside of guard ring all is provided with the cable core, the inside of inner sheath is filled with insulating granule, the inside center department of inner sheath is provided with the isolation pipe.

Preferably, one side surface of the plurality of protection rings is respectively contacted with one side surface of the insulation pipe.

Preferably, a plurality of arc-shaped reinforcing members are arranged between the top blocks, and one side surfaces of the arc-shaped reinforcing members are fixedly connected with one side surfaces of the corresponding top blocks.

Preferably, the surface of the flame-retardant protective sleeve is equally and fixedly connected with a plurality of arc-shaped wear-resistant protruding blocks.

Preferably, a plurality of heat conducting columns are uniformly arranged on the surface of the flame-retardant protective sleeve.

Preferably, a plurality of heat conduction columns are respectively communicated with the first insulating layer, the second insulating layer and the waterproof layer, and the other ends of the plurality of heat conduction columns are respectively connected with one side surface of the heat conduction ring.

The utility model has the technical effects and advantages that:

1. through being provided with fire-retardant lag, first insulating layer, second insulating layer, waterproof layer, heat conduction ring, kicking block, inner sheath, cable core, insulating granule, isolated pipe, the utility model discloses a cut apart between a plurality of insulating layers in the outside and the inner sheath of inside, make inside multilayer structure non-mutual contact to improve the heat dispersion of equipment inside through the heat conduction ring, thereby effectually improved the radiating effect of equipment, set up inside cable core into a plurality ofly simultaneously, when single cable core is because high temperature damages, prevent the cable core through insulating granule and isolated pipe and contact each other, avoid further damage and the risk of burning, improve the electrically conductive isolated effect of equipment through two insulating layers;

2. the jacking blocks, the arc-shaped reinforcing members and the arc-shaped wear-resistant protruding blocks are arranged, so that the whole firmness of the equipment can be improved through connection between the arc-shaped reinforcing members and the jacking blocks, and the wear-resistant protection performance of the surface of the equipment can be improved through the arc-shaped wear-resistant protruding blocks;

3. through being provided with the heat conduction post to can outwards derive the heat of equipment inside through the heat conduction post, further improve the whole radiating effect of equipment.

Drawings

Fig. 1 is a schematic perspective view of a multi-layer insulated cable according to the present utility model.

Fig. 2 is a schematic diagram of a front cross-sectional structure of a multi-layer insulated cable according to the present utility model.

Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure: 1. a flame-retardant protective sleeve; 2. a first insulating layer; 3. a second insulating layer; 4. a waterproof layer; 5. a heat conducting ring; 6. a top block; 7. an inner sheath; 8. a protective ring; 9. a cable core; 10. insulating particles; 11. an isolation tube; 12. arc reinforcement; 13. arc wear-resisting protruding blocks; 14. and a heat conduction column.

Detailed Description

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 utility model provides a multi-layer insulated cable as shown in figures 1-3, which comprises a flame-retardant protective sleeve 1, wherein the flame-retardant protective sleeve 1 is made of inorganic mineral materials, has high-efficiency flame-retardant effect, avoids spontaneous combustion caused by overhigh surface temperature, the inner wall of the flame-retardant protective sleeve 1 is fixedly connected with a first insulating layer 2, the inner wall of the first insulating layer 2 is fixedly connected with a second insulating layer 3, the first insulating layer 2 and the second insulating layer 3 are made of polytetrafluoroethylene materials, the problem of electric leakage in a core wire is avoided, the inner wall of the second insulating layer 3 is fixedly connected with a waterproof layer 4, the waterproof layer 4 is coated with waterproof paint, the inner wall of the waterproof layer 4 is fixedly connected with a heat conducting ring 5, the inner walls of the heat conducting ring 5 are uniformly and fixedly connected with a plurality of top blocks 6, one side surfaces of the top blocks 6 are jointly and fixedly connected with an inner sheath 7, the inner multi-layer structure is not contacted with each other by dividing the first insulating layer 2 and the second insulating layer 3 outside and the inner sheath 7, and the inner heat conducting ring 5 is used for improving the inner heat conducting effect of equipment, thereby effectively improving the heat dissipation effect of the equipment;

the inside of inner sheath 7 is equallyd divide and is provided with a plurality of guard rings 8, and the inside of a plurality of guard rings 8 all is provided with cable core 9, and the inside packing of inner sheath 7 has insulating granule 10, and the inside center department of inner sheath 7 is provided with isolated pipe 11, and one side surface of a plurality of guard rings 8 contacts with one side surface of isolated pipe 11 respectively, through setting up inside cable core 9 to a plurality ofly, when single cable core 9 is damaged because high temperature, prevents the cable core 9 through insulating granule 10 and isolated pipe 11 and contacts each other, avoids further damage and the risk of burning.

As shown in fig. 1 and 3, arc-shaped reinforcing members 12 are arranged between the plurality of top blocks 6, one side surfaces of the plurality of arc-shaped reinforcing members 12 are fixedly connected with one side surface of the corresponding top block 6, and the surfaces of the flame-retardant protecting sleeve 1 are uniformly and fixedly connected with a plurality of arc-shaped wear-resistant protruding blocks 13, so that the whole firmness of the equipment can be improved through connection between the arc-shaped reinforcing members 12 and the plurality of top blocks 6, and the wear-resistant protection performance of the surface of the equipment can be improved through the arc-shaped wear-resistant protruding blocks 13.

As shown in fig. 2, the surface of the flame-retardant protecting sleeve 1 is uniformly provided with a plurality of heat conducting columns 14, the plurality of heat conducting columns 14 are respectively communicated with the first insulating layer 2, the second insulating layer 3 and the waterproof layer 4, and the other ends of the plurality of heat conducting columns 14 are respectively connected with one side surface of the heat conducting ring 5, so that heat in the equipment can be outwards led out through the heat conducting columns 14, and the overall heat dissipation effect of the equipment is further improved.

Working principle: when the device is used, whether the device has the problem of influencing the use or not is checked;

when carrying out multilayer insulated cable's use, improve the wear-resisting protection nature on equipment surface through outer a plurality of arc wear-resisting lug 13, simultaneously through fire-retardant lag 1, avoid the surface temperature of cable to lead to spontaneous combustion too high, and outwards discharge inside heat through heat conduction ring 5 and heat conduction post 14, and be connected between a plurality of kicking blocks 6 through arc reinforcement 12, make the whole fastness of equipment better, through setting up inside cable core 9 to a plurality of, when single cable core 9 is damaged because of the high temperature, prevent the mutual contact between the cable core 9 through insulating granule 10 and isolated pipe 11, avoid further damage and the risk of burning.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A multilayer insulated cable comprising a flame retardant protective sheath (1), characterized in that: the inner wall fixedly connected with first insulating layer (2) of fire-retardant lag (1), the inner wall fixedly connected with second insulating layer (3) of first insulating layer (2), the inner wall fixedly connected with waterproof layer (4) of second insulating layer (3), the inner wall fixedly connected with heat conduction ring (5) of waterproof layer (4), the equal fixedly connected with of inner wall of heat conduction ring (5) a plurality of kicking blocks (6), a plurality of a side surface of kicking block (6) fixedly connected with inner sheath (7) jointly.

2. A multi-layer insulated cable according to claim 1, wherein: the inside of inner sheath (7) is evenly divided and is provided with a plurality of guard rings (8), and a plurality of the inside of guard rings (8) all is provided with cable core (9), the inside of inner sheath (7) is filled with insulating granule (10), the inside center department of inner sheath (7) is provided with isolated pipe (11).

3. A multi-layer insulated cable according to claim 2, wherein: one side surface of the plurality of protection rings (8) is respectively contacted with one side surface of the isolation tube (11).

4. A multi-layer insulated cable according to claim 1, wherein: arc-shaped reinforcing members (12) are arranged among the plurality of top blocks (6), and one side surfaces of the plurality of arc-shaped reinforcing members (12) are fixedly connected with one side surface of the corresponding top block (6).

5. A multi-layer insulated cable according to claim 1, wherein: the surface of the flame-retardant protective sleeve (1) is uniformly and fixedly connected with a plurality of arc-shaped wear-resistant protruding blocks (13).

6. A multi-layer insulated cable according to claim 1, wherein: the surface of the flame-retardant protective sleeve (1) is uniformly provided with a plurality of heat conduction columns (14).

7. A multi-layer insulated cable according to claim 6, wherein: the heat conduction columns (14) are respectively communicated with the first insulating layer (2), the second insulating layer (3) and the waterproof layer (4), and the other ends of the heat conduction columns (14) are respectively connected with one side surface of the heat conduction ring (5).