An anti-interference high-voltage cable

Abstract

The application belongs to the technical field of cables, and discloses an anti-interference high-voltage cable, which comprises a protective sleeve, the inside of the protective sleeve is provided with a flame-retardant layer, the inside of the flame-retardant layer is provided with a shielding layer, the inside of the shielding layer is provided with an elastic supporting layer, the inside of the elastic supporting layer is provided with an aluminum foil layer, the inside of the aluminum foil layer is provided with an inner supporting piece, the inside of the inner supporting piece is provided with a containing groove, the inside of the containing groove is provided with a core pipe, and the inside of the core pipe is provided with a cable core. The protective sleeve, the flame-retardant layer, the glass fiber wire, the shielding layer, the elastic supporting layer, the aluminum foil layer, the inner supporting piece, the core pipe, the cable core and the containing groove are arranged, the insulation and the anti-interference effect of the cable inside and outside are improved, when there are many branch cables, the cables are prevented from interfering with each other and damaging normal work caused by power fields when working, the overall weight is relatively light, and the cable is convenient to carry and transport.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to an anti-interference high-voltage cable. Background Technology

[0002] High-voltage cables are a type of power cable, referring to power cables used to transmit power between 1kV and 1000kV. They are mostly used for power transmission and distribution. Most existing high-voltage cables do not have anti-interference structures, making them prone to failure and reducing their service life.

[0003] Chinese utility model patent with publication number CN202020359821.5 discloses a high-frequency anti-interference high-voltage cable for electric vehicles, comprising: a conductor made of several strands of conductive copper wires and an insulation layer covering the outer surface of the conductor. The insulation layer is covered with a shielding layer made of shielding copper wires, and a high-frequency shielding strip is wrapped around the shielding layer and a sheath layer.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: The cable structure disclosed above, with its shielding layer and high-frequency shielding band, can provide external interference shielding for the cable. However, when there are many branch cables, the electric fields between the cables cause mutual interference during operation, disrupting normal operation. Furthermore, the overall weight is relatively large, making it inconvenient to carry and transport. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an anti-interference high-voltage cable.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an anti-interference high-voltage cable, including a protective sleeve, a flame-retardant layer inside the protective sleeve, a shielding layer inside the flame-retardant layer, an elastic support layer inside the shielding layer, an aluminum foil layer inside the elastic support layer, an inner support member inside the aluminum foil layer, a receiving groove inside the inner support member, a core tube inside the receiving groove, and a cable core inside the core tube.

[0007] By adopting the above technical solutions, the protective sleeve, flame-retardant layer, fiberglass filament, shielding layer, elastic support layer, aluminum foil layer, inner support component, core tube, cable core and receiving groove are set up to improve the insulation and anti-interference effect of the cable inside and outside. When there are many cables, the cables between them will avoid mutual interference caused by electric field when they are working, which will disrupt normal operation. Moreover, the overall weight is light, which makes it convenient to carry and transport.

[0008] Furthermore, the flame-retardant layer has a honeycomb structure, and the interior of the flame-retardant layer is filled with glass fiber filaments.

[0009] By adopting the above technical solution, and by setting a honeycomb structure flame-retardant layer, the strength of the cable is improved while preventing oxygen from entering. In conjunction with the glass fiber filaments set inside the flame-retardant layer, the flame-retardant effect of the cable is enhanced, resulting in good insulation, strong heat resistance, and good corrosion resistance of the cable exterior.

[0010] Furthermore, the elastic support layer is made of vulcanized rubber.

[0011] By adopting the above technical solution and setting an elastic support layer made of vulcanized rubber, the cable's toughness is improved while also exhibiting high elasticity, heat resistance, and tensile strength.

[0012] Furthermore, the protective sleeve is a ceramicized silicone rubber sleeve.

[0013] By adopting the above technical solution,

[0014] Furthermore, the shielding layer is a non-metallic shielding layer made of polyolefin and conductive composite material.

[0015] By adopting the above technical solution, a protective sleeve made of ceramicized silicone rubber is set up, which gives the cable excellent fire resistance, flame retardancy, low smoke and non-toxic properties. The non-metallic shielding layer made of polyolefin and conductive composite materials is set up to improve the insulation of the cable.

[0016] Furthermore, the inner support is made of perfluoroethylene propylene, the inner receiving groove of the inner support is arc-shaped, the inner receiving groove is provided with an insulating wrapping layer, the insulating wrapping layer is made of insulating ethylene propylene rubber, and the interior of the insulating wrapping layer is mixed with graphite powder.

[0017] By adopting the above technical solution and setting an inner support component made of perfluoroethylene propylene, the cable has higher non-flammability, more fully meets the fire prevention and flame retardant function of the cable, has more reliable shielding and anti-interference performance, and has good internal electrical insulation performance, avoiding mutual interference caused by the electric field generated when the cables are working, which would disrupt normal operation. The receiving groove opened inside the inner support component can provide a space for the core tube, reducing the overall weight of the cable and making it more convenient to carry and transport.

[0018] Furthermore, the inner support member is provided with Y-shaped elastic tubing inside, and the elastic tubing is provided with reinforcing ribs, which are high-polymer nylon fiber strands.

[0019] By adopting the above technical solution, through the receiving groove set inside the inner support component, and through the set elastic tubing and reinforcing ribs, the tensile strength of the cable is enhanced, and the service life of the cable is improved.

[0020] Furthermore, the insulating wrapping layer is wrapped around the outside of the core tube, and there are three core tubes, which are symmetrically distributed in three receiving slots.

[0021] By adopting the above technical solution, and by setting an insulating wrapping layer on the outer wall of the core tube and graphite powder inside it, the adjacent cables can be effectively shielded, and the anti-interference ability of the cables can be enhanced.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. In this application, by setting a honeycomb structure flame-retardant layer, the strength of the cable is improved while preventing oxygen from entering. Combined with the glass fiber filaments set inside the flame-retardant layer, the flame-retardant effect of the cable is enhanced, making the cable have good insulation, strong heat resistance and good corrosion resistance. The protective sleeve made of ceramicized silicone rubber sheath makes the cable have excellent fireproof, flame-retardant, low smoke and non-toxic properties.

[0024] 2. In this application, the shielding layer, which is made of non-metallic shielding layer composed of polyolefin and conductive composite material, improves the insulation of the cable. The elastic support layer made of vulcanized rubber improves the toughness of the cable while providing high elasticity, heat resistance and tensile strength. The aluminum foil layer enhances the anti-interference effect of the cable. The internal support component made of perfluoroethylene propylene gives the cable higher non-flammability, more fully meets the fire prevention and flame retardant function of the cable, has more reliable shielding and anti-interference performance, and the internal electrical insulation performance of the cable is good, avoiding mutual interference caused by the electric field generated when the cables are working, which would disrupt normal operation.

[0025] 3. In this application, the receiving groove inside the inner support can provide space for the core tube, reducing the overall weight of the cable and making it easier to carry and transport. By setting the insulating wrapping layer on the outer wall of the core tube and the graphite powder inside, the adjacent cables can be effectively shielded, enhancing the cable's anti-interference ability. By setting the receiving groove inside the inner support, and by setting the elastic tubing and reinforcing ribs, the cable's tensile strength is enhanced, and the cable's service life is improved. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0027] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the inner support, receiving groove, elastic tube and reinforcing rib of this utility model embodiment.

[0029] In the diagram: 1. Protective sleeve; 2. Flame retardant layer; 21. Fiberglass filament; 3. Shielding layer; 4. Elastic support layer; 5. Aluminum foil layer; 6. Inner support component; 7. Core tube; 71. Cable core; 8. Receiving groove; 81. Insulation wrapping layer; 82. Elastic tubing; 83. Reinforcing rib. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-3 As shown in the figure, this application discloses an anti-interference high-voltage cable, including a protective sleeve 1. The protective sleeve 1 has a flame-retardant layer 2 inside, a shielding layer 3 inside the flame-retardant layer 2, an elastic support layer 4 inside the shielding layer 3, an aluminum foil layer 5 inside the elastic support layer 4, an inner support member 6 inside the aluminum foil layer 5, a receiving groove 8 inside the inner support member 6, a core tube 7 inside the receiving groove 8, and a cable core 71 inside the core tube 7.

[0032] The flame-retardant layer 2 has a honeycomb structure, and the interior of the flame-retardant layer 2 is filled with glass fiber filaments 21.

[0033] The elastic support layer 4 is made of vulcanized rubber.

[0034] The protective sleeve 1 is a ceramicized silicone rubber sleeve.

[0035] The shielding layer 3 is a non-metallic shielding layer made of polyolefin and conductive composite material.

[0036] The inner support 6 is made of perfluoroethylene propylene. The receiving groove 8 inside the inner support 6 is arc-shaped. An insulating wrapping layer 81 is provided inside the receiving groove 8. The insulating wrapping layer 81 is made of insulating ethylene propylene rubber. Graphite powder is mixed inside the insulating wrapping layer 81.

[0037] The inner support member 6 has Y-shaped elastic tubes 82 inside, and the elastic tubes 82 have reinforcing ribs 83 inside, which are high-polymer nylon fiber strands.

[0038] The insulating wrapping layer 81 wraps around the outside of the core tube 7. There are three core tubes 7, which are symmetrically distributed in three receiving slots 8.

[0039] The operating principle of an anti-interference high-voltage cable in this embodiment is as follows: A honeycomb structure flame-retardant layer 2 is installed to improve the cable's strength while blocking oxygen from entering. Combined with glass fiber filaments 21 installed inside the flame-retardant layer 2, the flame-retardant effect of the cable is enhanced, resulting in good external insulation, strong heat resistance, and good corrosion resistance. A protective sleeve 1 composed of ceramicized silicone rubber sheath is installed, giving the cable excellent fire resistance, flame retardancy, low smoke, and non-toxic properties. A shielding layer 3 composed of non-metallic shielding layers made of polyolefin and conductive composite materials is installed to improve the cable's insulation. An elastic support layer 4 made of vulcanized rubber material is installed to improve the cable's toughness while providing high elasticity, heat resistance, and tensile strength. An aluminum foil layer 5 is installed to enhance the cable's anti-interference effect. The cable is further enhanced by the installation of perfluoroethylene... The inner support component 6, made of acrylic material, gives the cable higher non-combustible performance, more fully meets the fire-retardant function of the cable, has more reliable shielding and anti-interference performance, and has good internal electrical insulation performance, avoiding mutual interference caused by the electric field generated when the cables are working, which would disrupt normal operation. The receiving groove 8 inside the inner support component 6 can provide a space for the core tube 7, reducing the overall weight of the cable and making it easier to carry and transport. By setting the insulating wrapping layer 81 wrapped around the outer wall of the core tube 7 and the graphite powder inside, the adjacent cables can be effectively shielded, enhancing the cable's anti-interference ability. The receiving groove 8 inside the inner support component 6, along with the elastic tubing 82 and reinforcing ribs 83, enhances the cable's tensile strength and improves the cable's service life.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An anti-interference high-voltage cable, comprising a protective sheath (1), characterized in that: The protective sleeve (1) has a flame-retardant layer (2) inside, a shielding layer (3) inside, an elastic support layer (4) inside, an aluminum foil layer (5) inside, an inner support member (6) inside, a receiving groove (8) inside, a core tube (7) inside, and a cable core (71) inside.

2. The anti-interference high-voltage cable according to claim 1, characterized in that: The flame retardant layer (2) has a honeycomb structure, and the interior of the flame retardant layer (2) is filled with glass fiber filaments (21).

3. The anti-interference high-voltage cable according to claim 1, characterized in that: The elastic support layer (4) is made of vulcanized rubber.

4. The anti-interference high-voltage cable according to claim 1, characterized in that: The protective sleeve (1) is a ceramicized silicone rubber sleeve.

5. The anti-interference high-voltage cable according to claim 1, characterized in that: The shielding layer (3) is a non-metallic shielding layer made of polyolefin and conductive composite material.

6. The anti-interference high-voltage cable according to claim 1, characterized in that: The inner support member (6) is made of perfluoroethylene propylene. The receiving groove (8) inside the inner support member (6) is arc-shaped. An insulating wrapping layer (81) is provided inside the receiving groove (8). The insulating wrapping layer (81) is made of insulating ethylene propylene rubber. Graphite powder is mixed inside the insulating wrapping layer (81).

7. The anti-interference high-voltage cable according to claim 1, characterized in that: The inner support member (6) is provided with Y-shaped elastic tubes (82), and the elastic tubes (82) are provided with reinforcing ribs (83), which are high-polymer nylon fiber strands.

8. The anti-interference high-voltage cable according to claim 6, characterized in that: The insulating wrapping layer (81) wraps around the outside of the core tube (7), and there are three core tubes (7) symmetrically distributed in three receiving slots (8).

Images