Signal interference resistant power cable with electromagnetic shield layer

Abstract

The utility model discloses a kind of signal interference prevention power cable with electromagnetic shielding layer, specifically related to power cable technical field, including protective sleeve, first wire cover and second wire cover, the outside of the protective sleeve is provided with shielding assembly, the shielding assembly includes first wire cover, boss, second wire cover, slot, inner groove and shielding layer main body.The utility model is provided with first wire cover and second wire cover, the boss of first wire cover side end is connected with the slot of second wire cover side end after butt joint, first wire cover and second wire cover can be wrapped in the outside of protective sleeve, the shielding layer main body of first wire cover, second wire cover inside can carry out anti-interference protection to the wire core inside protective sleeve, later, after separating boss and slot, first wire cover, second wire cover can be taken off from the outside of protective sleeve, the shielding layer main body of inside is exposed, shielding layer main body can be maintained or replaced processing, the convenience when the power cable shielding layer main body maintenance is realized.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a power cable with an electromagnetic shielding layer that prevents signal interference. Background Technology

[0002] Power cables are mainly used to transmit electrical energy and are widely used in high-voltage transmission lines, distribution lines, substations, transformers and other places in power systems. In high-voltage transmission lines, large-section, high-voltage cables are used to achieve long-distance, high-efficiency power transmission. In distribution lines, they are used to distribute power from the high-voltage grid to user facilities, such as residential, industrial and commercial areas. In substations, they are used to connect transformers and distribution lines to achieve voltage conversion and power distribution.

[0003] If the shielding layer is damaged during use, it may not be able to effectively protect the internal conductor, making the cable more susceptible to external damage and thus shortening the cable's lifespan. Some types of shielding layers may require regular maintenance to maintain their shielding effect. Neglecting maintenance may lead to a decline in the performance of the shielding layer, affecting the long-term reliability of the cable. Built-in shielding layers are not conducive to later maintenance.

[0004] Therefore, a power cable with an electromagnetic shielding layer to prevent signal interference is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a power cable with an electromagnetic shielding layer to prevent signal interference, thereby solving the problem mentioned in the background art that the shielding layer of power cables is inconvenient to maintain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a signal interference-resistant power cable with an electromagnetic shielding layer, comprising a protective sleeve, a first wire sleeve, and a second wire sleeve. A shielding component is provided on the outer side of the protective sleeve. The shielding component includes a first wire sleeve, a protrusion, a second wire sleeve, a slot, an inner groove, and a shielding layer body. The first wire sleeve is provided at the rear end of the outer side of the protective sleeve. A protrusion is fixed at the front end of the first wire sleeve. The second wire sleeve is provided at the front end of the outer side of the protective sleeve. A slot is provided at the rear end of the second wire sleeve. An inner groove is provided on the inner sidewall of the first and second wire sleeves. The shielding layer body is installed inside the inner groove.

[0007] As a further technical solution of this utility model, a number of protrusions are fixed at the front end of the first sleeve, and the number of protrusions are distributed at equal intervals.

[0008] As a further technical solution of this utility model, the cross-section of the protrusion is smaller than the cross-section of the slot, and the front end of the protrusion extends into the interior of the slot.

[0009] As a further technical solution of this utility model, an arc-shaped adhesive strip is fixed to the outer side wall of both the first and second sleeves, and an isolation sleeve is fixed to the outer side of the arc-shaped adhesive strip. The outer side wall of the isolation sleeve is provided with heat dissipation holes.

[0010] As a further technical solution of this utility model, several arc-shaped adhesive strips are fixed on the outer side walls of the first and second sleeves, and the several arc-shaped adhesive strips are distributed in a ring.

[0011] As a further technical solution of this utility model, a plurality of heat dissipation holes are provided on the outer side wall of the isolation sleeve, and the plurality of heat dissipation holes are distributed in parallel.

[0012] As a further technical solution of this utility model, a shaping block is installed inside the protective sleeve, a wire groove is provided through the left side of the shaping block, a wire core is installed inside the wire groove, a central hole is provided through the center position of the left side of the shaping block, a heat-conducting wire is installed inside the central hole, the heat-conducting wire extends to both sides of the outer side of the protective sleeve, and shaping rings are installed at both ends of the outer side of the protective sleeve, and heat dissipation grooves are provided on the outer side wall of the shaping rings.

[0013] As a further technical solution of this utility model, several grooves are provided through the left side of the shaping block, and the grooves are symmetrically distributed.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a first wire sleeve and a second wire sleeve, after the protrusion on the side end of the first wire sleeve mates with the slot on the side end of the second wire sleeve, the first wire sleeve and the second wire sleeve can wrap around the outside of the protective sleeve. The shielding layer body inside the first wire sleeve and the second wire sleeve can provide anti-interference protection for the wire core inside the protective sleeve. Later, after separating the protrusion and the slot, the first wire sleeve and the second wire sleeve can be removed from the outside of the protective sleeve, and the shielding layer body inside is exposed, so that the shielding layer body can be maintained or replaced, thus realizing the convenience of maintaining the shielding layer body of the power cable.

[0015] By incorporating arc-shaped rubber strips, multiple sets of arc-shaped rubber strips are located on the outside of the first and second wire sleeves. When subjected to external pressure, these multiple sets of arc-shaped rubber strips can help reduce the impact of pressure on the internal wire core, thereby enhancing the pressure resistance protection function of the power cable during use.

[0016] The cable is equipped with a shaping block and a central hole. A heat-conducting wire is inserted into the central hole at the center of the shaping block. The heat-conducting wire extends to the ends of the outer wall of the protective sleeve on both sides and is fixed around it. The heat-conducting wire is located inside the wire core, which can assist the wire core in heat conduction and lead the heat to the outside, thus assisting in heat dissipation and enhancing the heat dissipation effect of the power cable during use. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a side sectional view of the present invention.

[0020] Figure 4 This is a front view cross-sectional structural diagram of the protective cover of this utility model.

[0021] In the diagram: 1. Protective sleeve; 2. First wire sleeve; 3. Protrusion; 4. Second wire sleeve; 5. Slot; 6. Inner groove; 7. Shielding layer body; 8. Arc-shaped rubber strip; 9. Isolation sleeve; 10. Heat dissipation hole; 11. Shaping block; 12. Wire groove; 13. Wire core; 14. Center hole; 15. Heat-conducting wire; 16. Shaping ring; 17. Heat dissipation groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a signal interference-resistant power cable with an electromagnetic shielding layer, comprising a protective sleeve 1, a first wire sleeve 2, and a second wire sleeve 4. A shielding component is provided on the outer side of the protective sleeve 1. The shielding component includes the first wire sleeve 2, a protrusion 3, the second wire sleeve 4, a slot 5, an inner groove 6, and a shielding layer body 7. The first wire sleeve 2 is provided at the rear end of the outer side of the protective sleeve 1. A protrusion 3 is fixed at the front end of the first wire sleeve 2. Several protrusions 3 are fixed at the front end of the first wire sleeve 2 and are distributed at equal intervals. The second wire sleeve 4 is provided at the front end of the outer side of the protective sleeve 1. A slot 5 is provided at the rear end of the second wire sleeve 4. The cross-section of the protrusion 3 is smaller than the cross-section of the slot 5. The front end of the protrusion 3 extends into the interior of the slot 5. An inner groove 6 is provided on the inner sidewall of the first wire sleeve 2 and the second wire sleeve 4. The shielding layer body 7 is installed inside the inner groove 6.

[0024] Specifically, such as Figure 1 and Figure 3As shown, during use, the shielding layer body 7 is placed in the inner groove 6 inside the first wire sleeve 2 and the second wire sleeve 4. After the first wire sleeve 2 and the second wire sleeve 4 are put on the outside of the protective sleeve 1, the protrusions 3 and slots 5 between them are connected and fixed on the outside of the protective sleeve 1 for use. The inner shielding layer body 7 can provide anti-interference protection. Conversely, after the protrusions 3 and slots 5 are separated, the first wire sleeve 2 and the second wire sleeve 4 can be peeled off from the outside of the protective sleeve 1, and the inner shielding layer body 7 is exposed, which can be maintained or replaced.

[0025] The outer walls of the first sleeve 2 and the second sleeve 4 are both fixed with arc-shaped rubber strips 8. Several arc-shaped rubber strips 8 are fixed on the outer walls of the first sleeve 2 and the second sleeve 4. The several arc-shaped rubber strips 8 are arranged in a ring. An isolation sleeve 9 is fixed on the outer side of the arc-shaped rubber strips 8. The outer wall of the isolation sleeve 9 is provided with heat dissipation holes 10. Several heat dissipation holes 10 are provided on the outer wall of the isolation sleeve 9. The several heat dissipation holes 10 are arranged in parallel.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, during use, an isolation sleeve 9 is fixed to the outside of the first wire sleeve 2 and the second wire sleeve 4, and multiple sets of arc-shaped rubber strips 8 are fixed between them. The arc-shaped rubber strips 8 are located on the inside and can help provide pressure protection and reduce the impact of external pressure on the cable.

[0027] Inside the protective sleeve 1, a shaping block 11 is installed. A wire groove 12 is provided through the left side of the shaping block 11. Several wire grooves 12 are provided through the left side of the shaping block 11 and are symmetrically distributed. A wire core 13 is installed inside the wire groove 12. A central hole 14 is provided through the center of the left side of the shaping block 11. A heat-conducting wire 15 is installed inside the central hole 14. The heat-conducting wire 15 extends to both sides of the outer side of the protective sleeve 1. A shaping ring 16 is installed at both ends of the outer side of the protective sleeve 1. A heat dissipation groove 17 is provided on the outer wall of the shaping ring 16.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, during use, the shaping block 11 is located inside the protective sleeve 1, and multiple sets of wire grooves 12 on its surface allow the wire core 13 to pass through, which can assist in the positioning of the wire core 13. A heat-conducting wire 15 is inserted into the central hole 14 at the center of the shaping block 11. The heat-conducting wire 15 extends to the end of the outer wall of the protective sleeve 1 on both sides and is fixed around it. The heat-conducting wire 15 is located inside the wire core 13, which can assist the wire core 13 in heat conduction and lead the heat to the outside, thus assisting in heat dissipation.

[0029] Working principle: During use, the shaping block 11 is located inside the protective sleeve 1. Multiple sets of grooves 12 on its surface allow the wire cores 13 to pass through, assisting in positioning and arranging them in an orderly manner. A heat-conducting wire 15 passes through the central hole 14 at the center of the shaping block 11. The heat-conducting wire 15 extends to the ends of the outer wall of the protective sleeve 1 on both sides and is fixed around it. The heat-conducting wire 15 is located inside the wire core 13. During contact, it assists in heat conduction of the wire core 13 and directs heat to the outside. The outer part of the heat-conducting wire 15 contacts the shaping ring 16. The shaping ring 16 assists in fixing and shaping the ends while also assisting in heat dissipation. The shielding layer body 7 is placed in the inner groove 6 inside the first wire sleeve 2 and the second wire sleeve 4. After the cable sleeve 4 is fitted onto the outside of the protective sleeve 1, the protrusions 3 and slots 5 of each other align and are fixed to the outside of the protective sleeve 1 for use. The inner shielding layer body 7 provides anti-interference protection. Conversely, after the protrusions 3 and slots 5 are separated, the first cable sleeve 2 and the second cable sleeve 4 can be peeled off from the outside of the protective sleeve 1, exposing the inner shielding layer body 7 for maintenance or replacement. At the same time, an isolation sleeve 9 is fixed to the outside of the first cable sleeve 2 and the second cable sleeve 4, and multiple sets of arc-shaped rubber strips 8 are fixed between them. The arc-shaped rubber strips 8 are located on the inside and can provide pressure protection to reduce the impact of external pressure on the cable. Multiple sets of heat dissipation holes 10 are provided on the surface of the isolation sleeve 9 to allow airflow to flow inside the isolation sleeve 9. During the airflow, the cable can be cooled from the outside.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A signal interference resistant power cable with an electromagnetic shielding layer, comprising a protective sheath (1), a first wire sheath (2), and a second wire sheath (4), characterized in that: A shielding component is provided on the outer side of the protective sleeve (1); The shielding assembly includes a first sleeve (2), a protrusion (3), a second sleeve (4), a slot (5), an inner groove (6), and a shielding layer body (7). The first sleeve (2) is provided at the rear end of the outer side of the protective sleeve (1). The protrusion (3) is fixed at the front end of the first sleeve (2). The second sleeve (4) is provided at the front end of the outer side of the protective sleeve (1). The slot (5) is provided at the rear end of the second sleeve (4). The inner sidewalls of the first sleeve (2) and the second sleeve (4) are provided with an inner groove (6). The shielding layer body (7) is installed inside the inner groove (6).

2. The signal interference resistant power cable with an electromagnetic shielding layer according to claim 1, characterized in that: Several protrusions (3) are fixed at the front end of the first sleeve (2), and the protrusions (3) are distributed at equal intervals.

3. The signal interference resistant power cable with an electromagnetic shielding layer according to claim 1, characterized in that: The cross-section of the protrusion (3) is smaller than the cross-section of the slot (5), and the front end of the protrusion (3) extends into the interior of the slot (5).

4. The signal interference resistant power cable with an electromagnetic shielding layer according to claim 1, characterized in that: The outer walls of the first sleeve (2) and the second sleeve (4) are both fixed with arc-shaped rubber strips (8), and the outer side of the arc-shaped rubber strips (8) is fixed with an isolation sleeve (9), and the outer side wall of the isolation sleeve (9) is provided with heat dissipation holes (10).

5. A signal interference-resistant power cable with an electromagnetic shielding layer according to claim 4, characterized in that: Several arc-shaped adhesive strips (8) are fixed on the outer side walls of the first sleeve (2) and the second sleeve (4), and the arc-shaped adhesive strips (8) are arranged in a ring.

6. A signal interference resistant power cable with an electromagnetic shielding layer according to claim 4, characterized in that: Several heat dissipation holes (10) are provided on the outer side wall of the isolation sleeve (9), and the several heat dissipation holes (10) are distributed in parallel.

7. A signal interference-resistant power cable with an electromagnetic shielding layer according to claim 1, characterized in that: The protective sleeve (1) has a shaping block (11) installed inside. A wire groove (12) is provided through the left side of the shaping block (11). A wire core (13) is installed inside the wire groove (12). A central hole (14) is provided through the center of the left side of the shaping block (11). A heat-conducting wire (15) is installed inside the central hole (14). The heat-conducting wire (15) extends to both sides of the outer side of the protective sleeve (1). A shaping ring (16) is installed at both ends of the outer side of the protective sleeve (1). A heat dissipation groove (17) is provided on the outer wall of the shaping ring (16).

8. A signal interference-resistant power cable with an electromagnetic shielding layer according to claim 7, characterized in that: Several grooves (12) are provided through the left side of the shaping block (11), and the grooves (12) are symmetrically distributed.

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