CN212990767U - Environment-friendly anti-interference type sheath-free power cable - Google Patents
Environment-friendly anti-interference type sheath-free power cable Download PDFInfo
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- CN212990767U CN212990767U CN202021972395.9U CN202021972395U CN212990767U CN 212990767 U CN212990767 U CN 212990767U CN 202021972395 U CN202021972395 U CN 202021972395U CN 212990767 U CN212990767 U CN 212990767U
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Abstract
The utility model provides an environment-friendly anti-interference type non-sheath power cable, which comprises a cable core, a first shielding layer and a second shielding layer, wherein the first shielding layer and the second shielding layer are wrapped on the cable core; the second shielding layer wraps the first shielding layer; a plurality of metal strips are arranged in the first shielding layer at equal intervals and are fixedly connected with the surface of the cable core; a metal woven net and a support column are arranged in the second shielding layer, and the cross section of the metal woven net is in a sawtooth shape; the quantity of support column is a plurality of, and a plurality of support columns are even locate in the second shielding layer. The utility model provides an anti-interference type of environmental protection does not have sheath power cable, its simple structure, shielding performance are good.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be an environmental protection anti-interference type does not have sheath power cable.
Background
The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved. The China economy continues to grow rapidly, a huge market space is provided for cable products, strong attraction is brought to the China market, the world focuses on the China market, and the huge production capacity formed by the China cable manufacturing industry makes the world look at after dozens of short decades of innovation. With the continuous enlargement of the scales of industries such as the Chinese power industry, the data communication industry, the urban rail transit industry, the automobile industry, the shipbuilding industry and the like, the demand on wires and cables is rapidly increased, and the wire and cable industry has huge development potential in the future.
The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.
The existing cable has poor anti-interference performance except for considering fire resistance, water resistance and some physical damages, so the work of seeking the cable is not slow.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an anti-interference type of environmental protection no sheath power cable to solve the anti-jamming shortcoming of cable in the above-mentioned technical background.
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly anti-interference type unsheathed power cable comprises a cable core, a first shielding layer and a second shielding layer, wherein the first shielding layer and the second shielding layer are wrapped on the cable core; the second shielding layer wraps the first shielding layer;
a plurality of metal strips are arranged in the first shielding layer at equal intervals and are fixedly connected with the surface of the cable core;
a metal woven net and a support column are arranged in the second shielding layer, and the cross section of the metal woven net is in a sawtooth shape; the quantity of support column is a plurality of, and is a plurality of the support column is even locates in the second shielding layer.
Preferably, the cable core comprises a pipeline, and a conductor and two clapboards which are arranged in the pipeline, the number of the clapboards is two, the two clapboards are mutually and vertically arranged in the pipeline, and two sides of each clapboard are respectively and fixedly connected with the inner surface of the pipeline; the number of the conductors is four, and the four conductors are respectively positioned in four spaces separated by the two partition plates.
Preferably, four of the conductors are all wrapped with an insulating layer.
Preferably, the cable core still includes the backing plate, the quantity of backing plate is eight, eight the backing plate is located respectively between conductor and the baffle, and eight the backing plate is located the position that closes on the conductor respectively.
Preferably, the pipeline is arranged at the joint of the metal strip and the pipeline and is provided with a groove, and the groove is matched with the metal strip.
Preferably, a filler is filled between the pipe and the conductor.
Preferably, the second shielding layer is wrapped with a heat insulation layer, and the heat insulation layer is filled with a heat insulation material.
Compared with the prior art, the utility model provides an anti-interference type of environmental protection does not have sheath power cable possesses following beneficial effect:
the utility model discloses a cable core, including first shielding layer, second shielding layer, first shielding layer and second shielding layer, the parcel has first shielding layer and second shielding layer to avoid cable core self during operation to produce the magnetic field to cause the influence to the external world and avoid the external world to cause the influence to the cable core, be equipped with a plurality of metal strips in the first shielding layer, even distribution is on cable core surface, the electromagnetic field to cable core during operation production is shielded in advance, be equipped with the metal mesh grid in the second shielding layer, and the cross section of metal mesh grid becomes the cockscomb structure, increase the area of metal mesh grid, strengthen the shielding property of metal mesh grid, and the effect that is equipped with the support column in the second shielding layer and plays the support avoids external pressure to lead to the metal mesh grid to warp, make shielding property descend, and the use of metal mesh grid has alleviateed the self weight of cable greatly, first shielding layer and second shielding layer.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
FIG. 1 is a schematic view of a simple cross-sectional structure of a steel pipe body according to the present invention;
fig. 2 is the utility model provides a steel pipe body cross section structure sketch map.
In the figure: 1. a cable core; 2. a first shielding layer; 3. a second shielding layer; 4. a thermal insulation layer; 5. a conductor; 6. an insulating layer; 7. a partition plate; 8. a base plate; 9. a metal strip; 10. a metal mesh grid; 11. a thermal insulation material; 12. and (4) a support column.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides an environment-friendly anti-interference type non-sheath power cable technical scheme: an environment-friendly anti-interference type unsheathed power cable comprises a cable core 1, a first shielding layer 2 and a second shielding layer 3, wherein the first shielding layer 2 and the second shielding layer 3 are wrapped on the cable core 1, and the first shielding layer 2 plays a role in pre-shielding the cable core 1; the second shielding layer 3 is wrapped on the first shielding layer 2;
a plurality of metal strips 9 are arranged in the first shielding layer 2 at equal intervals, the plurality of metal strips 9 are all fixedly connected with the surface of the cable core 1, and the arrangement of the plurality of metal strips 9 can avoid the influence of an electromagnetic field generated by the cable core 1 on the outside;
the metal woven mesh 10 and the support columns 12 are arranged in the second shielding layer 3, the cross section of the metal woven mesh 10 is in a sawtooth shape, the surface area of the metal woven mesh 10 in the second shielding layer 3 is increased, the metal woven mesh 10 can further play a role in shielding the cable core and the outside, and the outside and the cable core 1 can be conveniently interfered with each other; the quantity of support column 12 is a plurality of, and a plurality of support columns 12 are even locate in second shielding layer 3, and support column 12 plays the supporting role to second shielding layer 3, avoids external pressure to lead to the metal mesh grid 10 in the second shielding layer 3 to be squashed, leads to shielding performance to descend.
The cable core 1 comprises a pipeline, a conductor 5 and two clapboards 7, wherein the conductor 5 and the clapboards 7 are arranged in the pipeline, the two clapboards 7 are arranged in the pipeline in a mutually vertical manner, and two sides of each clapboard 7 are respectively fixedly connected with the inner surface of the pipeline; the number of the conductors 5 is four, and the four conductors 5 are respectively positioned in four spaces separated by the two partition plates 7.
The four conductors 5 are all wrapped by insulating layers 6, and the insulating effect is achieved on the conductors 5.
The groove is arranged at the joint of the metal strip 9 and the pipeline on the pipeline, and the groove is matched with the metal strip 9, so that the position of the metal strip 9 can be conveniently fixed.
The space between the pipe and the conductor 5 is filled with filler, and the filled pipe is filled with filler.
The second shielding layer 3 is wrapped with a heat insulation layer 4, and the heat insulation layer 4 is filled with a heat insulation material 11, so that the aging speed of the metal mesh grid 10 is prevented from being accelerated by the external high-temperature environment.
The utility model discloses a theory of operation and use flow: the during operation of cable core 1 can produce the electromagnetic field, be equipped with a plurality of metal strips 9 in the first shielding layer 2 of parcel on cable core 1, can play the effect of shielding in advance, be equipped with woven metal mesh 10 in the second shielding layer 3 of parcel on first shielding layer 2, woven metal mesh 10's transversal cockscomb structure of personally submitting, the shielding property of woven metal mesh 10 in second shielding layer 3 has been increased, can avoid the mutual interference of cable core 1 and external environment, and still be equipped with support column 12 in the second shielding layer 3 and play the supporting role to second shielding layer 3, avoid because the oppression that external environment produced, lead to woven metal mesh 10 to warp and reduce shielding property, and the parcel has insulating layer 4 on the second shielding layer 3, can effectually avoid the high temperature that external environment leads to accelerate ageing of woven metal mesh 10, the anti-interference ability of cable has been strengthened.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The environment-friendly anti-interference type unsheathed power cable is characterized by comprising a cable core (1), a first shielding layer (2) and a second shielding layer (3) which are wrapped on the cable core (1), wherein the first shielding layer (2) is wrapped on the cable core (1); the second shielding layer (3) is wrapped on the first shielding layer (2);
a plurality of metal strips (9) are arranged in the first shielding layer (2) at equal intervals, and the metal strips (9) are fixedly connected with the surface of the cable core (1);
a metal woven net (10) and a support column (12) are arranged in the second shielding layer (3), and the cross section of the metal woven net (10) is in a sawtooth shape; the number of the supporting columns (12) is multiple, and the supporting columns (12) are uniformly arranged in the second shielding layer (3).
2. The environmental protection anti-interference unsheathed power cable according to claim 1, characterized in that: the cable core (1) comprises a pipeline, a conductor (5) and two clapboards (7) which are arranged in the pipeline, the number of the clapboards (7) is two, the two clapboards (7) are mutually and vertically arranged in the pipeline, and two sides of each clapboard (7) are respectively and fixedly connected with the inner surface of the pipeline; the number of the conductors (5) is four, and the four conductors (5) are respectively positioned in four spaces separated by the two partition plates (7).
3. The environmental protection anti-interference unsheathed power cable according to claim 2, characterized in that: and the four conductors (5) are all wrapped with insulating layers (6).
4. The environmental protection anti-interference unsheathed power cable according to claim 2, characterized in that: cable core (1) still includes backing plate (8), the quantity of backing plate (8) is eight, eight backing plate (8) are located respectively between conductor (5) and baffle (7), and eight backing plate (8) are located the position that closes on conductor (5) respectively.
5. The environmental protection anti-interference unsheathed power cable according to claim 2, characterized in that: the pipeline is provided with a groove at the joint of the metal strip (9) and the pipeline, and the groove is matched with the metal strip (9).
6. The environmental protection anti-interference unsheathed power cable according to claim 2, characterized in that: and a filler is filled between the pipeline and the conductor (5).
7. The environmental protection anti-interference unsheathed power cable according to claim 1, characterized in that: the second shielding layer (3) is wrapped with a heat insulation layer (4), and the heat insulation layer (4) is filled with a heat insulation material (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021972395.9U CN212990767U (en) | 2020-09-10 | 2020-09-10 | Environment-friendly anti-interference type sheath-free power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021972395.9U CN212990767U (en) | 2020-09-10 | 2020-09-10 | Environment-friendly anti-interference type sheath-free power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212990767U true CN212990767U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021972395.9U Active CN212990767U (en) | 2020-09-10 | 2020-09-10 | Environment-friendly anti-interference type sheath-free power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212990767U (en) |
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2020
- 2020-09-10 CN CN202021972395.9U patent/CN212990767U/en active Active
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