Anti-interference high-voltage cable

Abstract

The utility model discloses an anti-interference high-voltage cable which comprises a cable outer protection sleeve, an inner bonding layer is fixedly sleeved in the cable outer protection sleeve, and inner aluminum foil isolation plates are arranged in four groups of isolation grooves; according to the utility model, the outer aluminum foil layer integrally wraps the internal structure of the cable, the connection between the outer aluminum foil layer and the wrapping filling block is enhanced through the bonding layer, the wrapping area is increased, the interference of external signals on the cable is reduced through the shielding function of the outer aluminum foil layer, and an external anti-interference defense line is formed; the inner aluminum foil isolation plates are installed in the isolation grooves and arranged between the different metal cable bodies, so that the branch cables are isolated, mutual interference and damage to normal work caused by an electric field generated when the branch cables work are avoided, and meanwhile only four sets of inner aluminum foil isolation plates need to be arranged. Compared with the design that the branch cable needs to be wrapped independently, the use amount of the aluminum foil is reduced, and therefore the use cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cables, in particular to an anti-interference high-voltage cable. Background Art

[0002] High-voltage cable is a type of power cable, which refers to a power cable used to transmit power between 1kv-1000kv, and is mostly used in power transmission and distribution. Most of the existing high-voltage cables do not have an anti-interference structure when in use, which makes the high-voltage cable prone to failure during use, reducing the service life of the high-voltage cable. Application No. 202120932144.6 discloses an anti-interference new energy high-voltage cable, including a cable sheath and a center pad, an adhesive layer is provided on the inner side of the cable sheath, a No. 1 aluminum foil layer is provided on the inner side of the adhesive layer, and docking grooves are equidistantly provided on the outer side of the center pad, and the inner side of the docking groove is movably connected There is a pressure-bearing head, and the outer end of the pressure-bearing head is fixedly connected with a covering pad. The anti-interference new energy high-voltage cable uses a No. 1 aluminum foil layer to cover the internal structure of the cable, and uses an adhesive layer to strengthen the connection between it and the cable sheath to increase the covering area. The shielding function of the aluminum foil layer reduces the interference of external signals on the cable. The No. 2 aluminum foil layer fully covers the wires to avoid mutual interference caused by the electric field generated when the branch cable is working. The wires are all twisted pairs wound on the hoop rod. The rough structure of the anti-slip layer binds the wires well. The twisted pair structure enhances the interference from adjacent cables and reduces the interference of its own signals to the outside world.

[0003] The cable structure disclosed above is provided with a No. 1 aluminum foil layer and a No. 2 aluminum foil layer for double internal and external anti-interference shielding. Although it can significantly improve the anti-interference type of the cable, the No. 2 aluminum foil layer inside it covers all the internal wires. Such a structural design requires more aluminum foil for covering when there are many branch cables, which will significantly increase the amount of aluminum foil used and increase the cost of cable use. It is necessary to improve and provide an anti-interference and low-cost high-voltage cable structure. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-interference high-voltage cable to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-interference high-voltage cable comprises an outer cable protective sheath, a flame-retardant filling layer, an outer aluminum foil layer, an aluminum foil protective pad, a coated filling block, an inner aluminum foil isolation plate and a mounting column, the inner fixed sleeve of the outer cable protective sheath is provided with an inner adhesive layer, and the inner adhesive layer is provided with a coated filling block, the inner part of the coated filling block is fixedly provided with four cable holes, and the four cable holes are symmetrically arranged, isolation grooves are provided between adjacent cable holes, and four groups of isolation grooves are provided, and inner aluminum foil isolation plates are provided inside the four groups of isolation grooves.

[0007] Preferably, an outer aluminum foil layer is provided between the outer protective sheath of the cable and the inner adhesive layer, and aluminum foil protective pads are provided on both sides of the outer aluminum foil layer.

[0008] Preferably, a flame retardant filling layer is provided between the outer aluminum foil layer and the outer protective sheath of the cable, and the flame retardant filling layer is filled with glass fiber filaments.

[0009] Preferably, a branch cable jacket is fixedly disposed inside each of the four cable holes, and a metal cable body is fixedly disposed inside the branch cable jacket.

[0010] Preferably, an installation groove is opened at the center of the sheathed filling block, and the installation groove is arranged at the center of the four distribution cable jackets. During installation, the installation column is installed inside the installation groove, and at the same time, four inner aluminum foil isolation plates symmetrically arranged on the outside of the installation column are inserted into the corresponding four isolation grooves. The inner aluminum foil isolation plates are just located between the metal cable bodies, so that the metal cable bodies of the distribution cables are isolated, thereby avoiding mutual interference caused by the electric field generated when the distribution cables are working, and disrupting normal operation.

[0011] Preferably, a mounting column is installed inside the mounting groove, and one end of the inner aluminum foil isolation plate is fixedly connected to the outer side of the mounting column.

[0012] Technical effects and advantages of the utility model:

[0013] In the present application, an outer aluminum foil layer is arranged between the outer protective sheath and the inner bonding layer of the cable. The outer aluminum foil layer covers the internal structure of the cable as a whole, and strengthens the connection between the outer aluminum foil layer and the covering filling block through the bonding layer, thereby increasing the covering area. The shielding function of the outer aluminum foil layer reduces the interference of the cable line by external signals, thereby forming an external anti-interference defense line. Inside the covering filling block, an isolation groove is arranged, and an inner aluminum foil isolation plate is installed inside the isolation groove. The inner aluminum foil isolation plate is arranged between different metal cable bodies, so that the branch cables are isolated from each other, avoiding mutual interference caused by the electric field generated when the branch cables are working, thereby disrupting normal operation. At the same time, only four groups of inner aluminum foil isolation plates are needed. Compared with the design that requires separate covering of the branch cables, the present application saves more aluminum foil usage, and therefore, its use cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the isolation slot structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the inner aluminum foil isolation plate of the utility model.

[0017] In the figure: 1. Cable outer protective sheath; 2. Flame retardant filling layer; 3. Inner bonding layer; 4. Outer aluminum foil layer; 5. Aluminum foil protective pad; 6. Coated filling block; 7. Inner aluminum foil isolation plate; 8. Mounting column; 9. Mounting groove; 10. Isolation groove; 11. Metal cable body; 12. Distribution cable jacket. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 An anti-interference high-voltage cable is shown, comprising an outer cable protective sheath 1, a flame-retardant filling layer 2, an outer aluminum foil layer 4, an aluminum foil protective pad 5, a coated filling block 6, an inner aluminum foil isolation plate 7, and a mounting column 8. The inner fixed sleeve of the outer cable protective sheath 1 is provided with an inner adhesive layer 3, the inner adhesive layer 3 is provided with a coated filling block 6, the inner part of the coated filling block 6 is fixedly provided with four cable holes, and the four cable holes are symmetrically arranged, isolation grooves 10 are provided between adjacent cable holes, and four groups of isolation grooves 10 are provided, and the inner parts of the four groups of isolation grooves 10 are provided with inner aluminum foil isolation plates 7.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an anti-interference high-voltage cable. Specifically, an outer aluminum foil layer 4 is arranged between the outer protective sheath 1 and the inner adhesive layer 3 of the cable, and aluminum foil protection pads 5 are arranged on both sides of the outer aluminum foil layer 4.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an anti-interference high-voltage cable. Specifically, a flame retardant filling layer 2 is arranged between the outer aluminum foil layer 4 and the cable outer protective sheath 1, and the flame retardant filling layer 2 is filled with glass fiber yarns. The glass fiber yarns have good high temperature resistance and fire resistance, thereby improving its flame retardant effect.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an anti-interference high-voltage cable. Specifically, a branch cable jacket 12 is fixedly provided inside each of the four cable holes, and a metal cable body 11 is fixedly provided inside the branch cable jacket 12. The metal cable body 11 is protected by the branch cable jacket 12, and the branch cable jacket 12 is an insulating rubber jacket.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an anti-interference high-voltage cable. Specifically, a mounting groove 9 is opened at the center of the sheathed filling block 6, and the mounting groove 9 is arranged at the center of four branch cable jackets 12. The four branch cable jackets 12 are symmetrically arranged, and the mounting column 8 is installed inside the mounting groove 9. At the same time, four inner aluminum foil isolation plates 7 symmetrically arranged on the outside of the mounting column 8 are inserted into the corresponding four isolation grooves 10, and the inner aluminum foil isolation plates 7 are just between the metal cable bodies 11.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an anti-interference high-voltage cable. Specifically, a mounting column 8 is installed inside the mounting groove 9, and one end of the inner aluminum foil isolation plate 7 is fixedly connected to the outer side of the mounting column 8. During installation, the mounting column 8 is installed inside the mounting groove 9, and at the same time, four inner aluminum foil isolation plates 7 symmetrically arranged on the outer side of the mounting column 8 are inserted into the corresponding four isolation grooves 10. The inner aluminum foil isolation plates 7 are just located between the metal cable bodies 11, so that the metal cable bodies 11 of the branch cables are isolated from each other, thereby avoiding mutual interference caused by the electric field generated when the branch cables are working, thereby destroying normal operation.

[0025] Working principle of the utility model: the application arranges an outer aluminum foil layer 4 between the outer protective sheath 1 of the cable and the inner adhesive layer 3, the outer aluminum foil layer 4 covers the internal structure of the cable as a whole, and strengthens the connection between the outer aluminum foil layer 4 and the covering filling block 6 through the adhesive layer, thereby increasing the overall covering area, and reduces the interference of the cable line with external signals through the shielding function of the outer aluminum foil layer 4, thereby forming an external anti-interference defense line, and performing anti-interference processing from the outside, and inside the covering filling block 6, an isolation groove 10 is arranged, and an inner aluminum foil isolation plate 7 is installed inside the isolation groove 10, and the inner aluminum foil isolation plate 7 is arranged between different metal cable bodies 11, so that the metal cable bodies 11 of the branch cable are isolated from each other, thereby avoiding mutual interference caused by the electric field generated when the branch cable is working, thereby destroying the normal operation, and at the same time, only four groups of inner aluminum foil isolation plates 7 are needed, and compared with the design that requires the inner aluminum foil to cover the branch cable separately, the application saves more aluminum foil usage, and therefore, its use cost is lower.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An anti-interference high-voltage cable, comprising an outer cable protective sheath (1), a flame-retardant filling layer (2), an outer aluminum foil layer (4), an aluminum foil protective pad (5), a coated filling block (6), an inner aluminum foil isolation plate (7), and a mounting column (8), characterized in that: The cable outer protective sheath (1) is provided with an inner fixed sleeve having an inner adhesive layer (3), and the inner adhesive layer (3) is provided with a covering filling block (6), and the covering filling block (6) is provided with four cable holes in a fixed manner, and the four cable holes are symmetrically arranged, and isolation grooves (10) are provided between adjacent cable holes, and four groups of isolation grooves (10) are provided, and the four groups of isolation grooves (10) are provided with inner aluminum foil isolation plates (7) in their interiors.

2. The anti-interference high voltage cable according to claim 1, characterized in that: An outer aluminum foil layer (4) is provided between the cable outer protective sheath (1) and the inner adhesive layer (3), and aluminum foil protective pads (5) are provided on both sides of the outer aluminum foil layer (4).

3. The anti-interference high voltage cable according to claim 2, characterized in that: A flame retardant filling layer (2) is provided between the outer aluminum foil layer (4) and the cable outer protective sheath (1), and the interior of the flame retardant filling layer (2) is filled with glass fiber filaments.

4. The anti-interference high voltage cable according to claim 1, characterized in that: A branch cable jacket (12) is fixedly arranged inside each of the four cable holes, and a metal cable body (11) is fixedly arranged inside the branch cable jacket (12).

5. The anti-interference high voltage cable according to claim 4, characterized in that: A mounting groove (9) is provided at the center of the covering filling block (6), and the mounting groove (9) is arranged at the center of four branch cable jackets (12).

6. The anti-interference high voltage cable according to claim 5, characterized in that: A mounting column (8) is installed inside the mounting groove (9), and one end of the inner aluminum foil isolation plate (7) is fixedly connected to the outer side of the mounting column (8).

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