CN214123528U

CN214123528U - Power signal transmission cable for smart grid

Info

Publication number: CN214123528U
Application number: CN202023315053.2U
Authority: CN
Inventors: 赵金磊; 范计划; 储小红
Original assignee: Wuxi City Heng Hui Cable Co ltd
Current assignee: Wuxi City Heng Hui Cable Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-03
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a power signal transmission cable for a smart grid, which comprises a first outer sheath, wherein the outer side wall of the first outer sheath is fixedly connected with a second outer sheath, and the outer side wall of the second outer sheath is provided with a third outer sheath; when the device is used, the cable after twisting production is located the first outer sheath, the inside of first armor and first inner sheath, the inserted block through the plate body both sides is pegged graft and is fixed between inside completion cable main part of slot and the outer inoxidizing coating of fixed plate, it is fixed through the mode of bonding to have avoided between cable main part and the inoxidizing coating, thereby can not produce the peeling phenomenon long-term use, and simultaneously, through setting up low temperature resistant insulating layer in this device, high temperature resistant insulating layer improves the insulating nature of cable, and high temperature resistant low temperature resistant characteristic has been improved, the inside fire-retardant layer of collocation device and first armor have improved the high temperature and the microthermal bearing capacity of cable once more.

Description

Power signal transmission cable for smart grid

Technical Field

The utility model relates to a power grid transmission cable technical field specifically is a power signal transmission cable for smart power grids.

Background

As is well known, a power cable is a cable for transmitting and distributing electric energy, and is commonly used in an urban underground power grid, a power station outgoing line, power supply inside an industrial and mining enterprise, and a transmission line under river-crossing seawater, wherein the power cable is a wire product for transmitting electric (magnetic) energy, information, and electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: 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.

However, the existing power signal transmission cable for the smart grid has certain problems:

firstly, the existing power signal transmission cable for the smart grid is often lack of resistance to high temperature and low temperature in an internal protection structure, so that the cable is easy to deform or crack when meeting an extreme temperature environment in use.

Secondly, in the traditional production and manufacturing process of the existing power signal transmission cable for the smart grid, the cable main body is usually adhered to the inside of the protective layer, and the adhesion of the adhesive inside the produced cable is easily reduced after the cable is used for a long time, so that the cable is separated from the protective layer.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a power signal transmission cable for smart power grids.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power signal transmission cable for smart power grids, includes first oversheath, the outer sheath of lateral wall fixedly connected with second of first oversheath, the lateral wall of the outer sheath of second is equipped with the third oversheath, the inside wall of third oversheath bonds and has the low temperature resistant insulating layer, the inside wall of low temperature resistant insulating layer is scribbled and is equipped with waterproof coating, waterproof coating's inside wall bonds and has the interior weaving layer, the fire-retardant layer of inside wall fixedly connected with of interior weaving layer, the inside wall fixedly connected with high temperature resistant insulating layer on fire-retardant layer, the inside wall of high temperature resistant insulating layer bonds and has the third inner sheath, the inside wall of first oversheath bonds and has first armor, the inside wall fixedly connected with first inner sheath of first armor, the inside wall of first oversheath is equipped with the cable.

Preferably, the inner side wall of the third inner sheath is symmetrically and fixedly connected with four fixing plates, four slots are formed in adjacent one sides of the fixing plates, the outer side wall of the first outer sheath is symmetrically and fixedly connected with two plate bodies, two insertion blocks are welded on two sides of each plate body, and four outer side walls of the insertion blocks are all inserted into the slots.

Preferably, the inner side wall of the second outer sheath is fixedly connected with an outer woven layer.

Preferably, the inner side wall of the outer woven layer is fixedly connected with a second armor layer, and a torsion-resistant layer is bonded to the inner side wall of the second armor layer.

Preferably, the inner side wall of the torsion-resistant layer is fixedly connected with an electric shielding layer, and a second inner sheath is bonded on the inner side wall of the electric shielding layer.

Preferably, the inside of the cable is provided with a rubber strip.

Advantageous effects

Compared with the prior art, the utility model provides a power signal transmission cable for smart power grids possesses following beneficial effect:

the device is characterized in that the insulation performance of the cable is improved through the low-temperature-resistant insulating layer and the high-temperature-resistant insulating layer, the high-temperature-resistant and low-temperature-resistant characteristics are improved, and the high-temperature and low-temperature bearing capacity of the cable is improved again through the flame-retardant layer and the first armor layer inside the collocation device.

When the device is used, the insertion blocks on the two sides of the plate body are inserted into the slots of the fixing plate to fix the cable main body part and the outer protective layer, so that the cable main body and the protective layer are prevented from being fixed in a bonding mode, and the stripping phenomenon cannot occur after long-term use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the first outer sheath of the present invention;

fig. 3 is a schematic view of the internal structure of the third outer sheath of the present invention;

fig. 4 is a schematic view of the internal structure of the second outer sheath according to the present invention.

In the figure: 1. inserting a block; 2. a slot; 3. a cable; 4. a first outer jacket; 5. a rubber strip; 6. a plate body; 7. a fixing plate; 8. a second outer sheath; 9. a third outer jacket; 10. a first armor layer; 11. a first inner sheath; 12. a second inner sheath; 13. a power shielding layer; 14. a third inner sheath; 15. a high temperature resistant insulating layer; 16. a flame retardant layer; 17. an inner braid; 18. a water-resistant coating; 19. a low temperature resistant insulating layer; 20. an outer braid layer; 21. a second armor layer; 22. and a torsion resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a power signal transmission cable for smart power grids, including first oversheath 4, the lateral wall fixedly connected with second outer sheath 8 of first oversheath 4, the lateral wall of second outer sheath 8 is equipped with third oversheath 9, the inside wall of third oversheath 9 bonds and has low temperature resistant insulating layer 19, waterproof coating 18 is scribbled to the inside wall of low temperature resistant insulating layer 19, waterproof coating 18's inside wall bonds and has interior weaving layer 17, the inside wall fixedly connected with fire-retardant layer 16 of interior weaving layer 17, the inside wall fixedly connected with high temperature resistant insulating layer 15 of fire-retardant layer 16, the inside wall of high temperature resistant insulating layer 15 bonds and has third inner sheath 14, the inside wall of first oversheath 4 bonds and has first armor 10, the inside wall fixedly connected with first inner sheath 11 of first armor 10, the inside wall of first oversheath 4 is equipped with cable 3.

In this embodiment, specifically: the inner side wall of the third inner sheath 14 is symmetrically and fixedly connected with four fixing plates 7, slots 2 are formed in adjacent sides of the four fixing plates 7, two plate bodies 6 are symmetrically and fixedly connected with the outer side wall of the first outer sheath 4, inserting blocks 1 are welded to two sides of the two plate bodies 6, and the outer side walls of the four inserting blocks 1 are inserted into the slots 2; the cable 3 after the stranding production is located inside the first outer sheath 4, the first armor layer 10 and the first inner sheath 11, and is inserted into the slot 2 of the fixing plate 7 through the insertion blocks 1 on two sides of the plate body 6, so that the main part of the cable 3 and the outer protective layer are fixed, and the cable 3 is prevented from being fixed with the protective layer in a bonding mode.

In this embodiment, specifically: the inner side wall of the second outer sheath 8 is fixedly connected with an outer weaving layer 20; the outer braid 20 is made of nickel-plated copper alloy, and the outer braid 20 made of the nickel-plated copper alloy has high corrosion resistance, high-temperature fatigue resistance and the like and is used in a high-temperature environment with high requirements.

In this embodiment, specifically: the inner side wall of the outer woven layer 20 is fixedly connected with a second armor layer 21, and a torsion-resistant layer 22 is bonded on the inner side wall of the second armor layer 21; second armor 21 in this device uses the material to be nickel-plated copper conductor, and second armor 21 under its material possesses higher compliance, high temperature resistance and has improved the resistivity, and simultaneously, the use material of layer 22 is the aluminum alloy weaving layer to be able to bear or endure to turn round, and its material possesses higher resistant wrench movement nature, avoids the cable to receive external force influence to lead to serious deformation.

In this embodiment, specifically: the inner side wall of the torsion-resistant layer 22 is fixedly connected with an electric power shielding layer 13, and a second inner sheath 12 is bonded on the inner side wall of the electric power shielding layer 13; the power shielding layer 13 in the device is made of copper-core polyvinyl chloride, and the power shielding layer 13 made of the copper-core polyvinyl chloride has high electrostatic shielding and alternating electric field shielding performances and good insulating property.

In this embodiment, specifically: a rubber strip 5 is arranged inside the cable 3; the rubber strip 5 is made of cross-linked polyethylene, and the rubber strip 5 made of the cross-linked polyethylene has the obvious characteristics of high temperature resistance and insulation.

To sum up, the working principle and the working process of the power signal transmission cable for the smart grid are that, when in use, firstly, the cable 3 after the twisted production is positioned inside the first outer sheath 4, the first armor layer 10 and the first inner sheath 11, and is inserted into the slot 2 of the fixing plate 7 through the insertion blocks 1 at the two sides of the plate body 6, so that the fixation between the main body part of the cable 3 and the outer protective layer is completed, the fixation between the main body part of the cable 3 and the protective layer through a bonding mode is avoided, and therefore, the stripping phenomenon can not be generated in long-term use, meanwhile, the insulation property of the cable 3 is improved through the arrangement of the low temperature resistant insulating layer 19 and the high temperature resistant insulating layer 15, the high temperature resistant and low temperature resistant characteristics are improved, the high temperature and low temperature resistant bearing capacity of the cable 3 is improved again through the flame retardant layer 16 and the first armor layer 10 in the matching device, wherein the first outer sheath 4 and the second outer sheath 8 are both made of chlorinated polyethylene, the material of the flame-retardant layer 16 is fiber silicate, the material has high temperature resistance and can be used in the environment with the temperature exceeding 300 ℃, meanwhile, the material of the second armor layer 21 in the device is a nickel-plated copper conductor, and the second armor layer 21 under the material has high flexibility, High temperature resistance has just improved the resistivity, and simultaneously, the use material of resistant layer 22 of turning round is the aluminum alloy weaving layer, and its material possesses higher resistant turning round nature, avoids the cable to receive external force influence to lead to serious deformation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A power signal transmission cable for a smart grid, comprising a first outer sheath (4), characterized in that: the outer side wall of the first outer sheath (4) is fixedly connected with a second outer sheath (8), the outer side wall of the second outer sheath (8) is provided with a third outer sheath (9), the inner side wall of the third outer sheath (9) is bonded with a low temperature resistant insulating layer (19), the inner side wall of the low temperature resistant insulating layer (19) is coated with a waterproof coating (18), the inner side wall of the waterproof coating (18) is bonded with an inner woven layer (17), the inner side wall of the inner woven layer (17) is fixedly connected with a flame retardant layer (16), the inner side wall of the flame retardant layer (16) is fixedly connected with a high temperature resistant insulating layer (15), the inner side wall of the high temperature resistant insulating layer (15) is bonded with a third inner sheath (14), the inner side wall of the first outer sheath (4) is bonded with a first armor layer (10), and the inner side wall of the first armor layer (10) is fixedly connected with a first inner sheath (11), the inner side wall of the first outer sheath (4) is provided with a cable (3).

2. The power signal transmission cable for smart grid according to claim 1, wherein: four fixed plates (7) of the symmetrical fixedly connected with of inside wall of third inner sheath (14), four slot (2) have all been seted up to adjacent one side of fixed plate (7), two plate body (6) of the symmetrical fixedly connected with of outside wall of first oversheath (4), two inserted block (1), four have all been welded to the both sides of plate body (6) the lateral wall of inserted block (1) all peg graft in the inside of slot (2).

3. The power signal transmission cable for smart grid according to claim 1, wherein: the inner side wall of the second outer sheath (8) is fixedly connected with an outer weaving layer (20).

4. The power signal transmission cable for smart grid according to claim 3, wherein: the inside wall fixedly connected with second armor (21) of outer weaving layer (20), the inside wall bonding of second armor (21) has resistant layer of turning round (22).

5. The power signal transmission cable for smart grid according to claim 4, wherein: the utility model discloses a resistant layer (22) of turning round, including resistant layer (22) of turning round, the inside wall fixedly connected with electric power shielding layer (13), the inside wall bonding of electric power shielding layer (13) has second inner sheath (12).

6. The power signal transmission cable for smart grid according to claim 1, wherein: the inside of cable (3) is equipped with rubber strip (5).