Opto-electric composite flexible high-voltage reel cable

Abstract

The application discloses a photoelectric composite flexible high-voltage drum cable, which comprises a polyethylene outer sheath, the inner side of the polyethylene outer sheath is connected with a double-sided plastic-coated steel belt, the inner side of the double-sided plastic-coated steel belt is connected with an insulating belt, the inner side of the insulating belt is connected with an anti-cracking protective sheath, and the inner side of the anti-cracking protective sheath is sequentially distributed with a power line body, a filling rope, a reinforcing member and an optical fiber body from top to bottom; the power line body, the filling rope and the optical fiber body are distributed on the peripheral side of the reinforcing member. The photoelectric composite flexible high-voltage drum cable utilizes the metal heat dissipation column to dissipate heat of the cable, and when the high-altitude cable shakes under the wind blowing, the movable ball continuously reciprocatingly extrudes the rubber air bag, the rubber air bag inhales and exhales through the conveying pipe and the metal heat dissipation column, the airflow flows in the metal heat dissipation column, and the heat dissipation speed of the metal heat dissipation column is accelerated, so that the heat dissipation of the cable is accelerated.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a photoelectric composite flexible high-voltage reel cable. Background Technology

[0002] Cables are devices that transmit electrical energy or signals, consisting of several or groups of conductors. They are used in urban and rural areas, main lines for users, switch cabinets, and other places. They are mainly used for the transmission of electrical energy in power generation, distribution, transmission, transformation, and power supply lines. There are many varieties and specifications of cables, and their applications are wide. Cables with corresponding performance can be selected according to the application location. In order to ensure long-distance power transmission and to ensure the safety of power transmission, cables are generally installed outdoors at high altitudes.

[0003] The publication number CN218497810U describes a flexible high-voltage reel cable for port power supply, consisting of a semi-conductive filler strip, power conductors, grounding conductors, and signal conductors. By twisting the power conductors, grounding conductors, and signal conductors around the semi-conductive filler strip, the parallel arrangement of the cable cores significantly reduces the overall outer diameter of the cable, saving on the cost of the reel equipment and improving the overall shielding performance of the cable. Furthermore, the semi-conductive filler strip is made of vulcanized rubber, which can better absorb impact energy in the radial direction of the cable and support the power conductors, grounding conductors, and signal conductors, thus providing protection for all conductors inside the cable. The semi-conductive filler strip increases the tensile strength of the cable, and together with the reinforcing layer of Kevlar woven mesh, the cable can withstand greater axial loads.

[0004] Another publication, CN209880238U, describes a cable comprising, from the outside in, a PVC sheath, a reinforcing layer, and several cores. The cores include a central core and side cores arranged in a ring around the outer side of the central core. The central core includes several conductive wires and an insulation layer covering these conductive wires. A positioning strip is provided on the outer side of the insulation layer to position the side cores. A positioning groove is provided on the outer side of each side core to engage with the positioning strip. This invention features good compressive strength and elasticity. The engagement and positioning of the side cores and central cores ensures that the side cores do not shift during the sheathing process, improving the circumferential uniformity of the cable cores and ensuring uniform stress distribution throughout the cable.

[0005] The aforementioned existing cables are constructed through various layers to buffer the cable and improve its load-bearing capacity. When the cable transmits electricity, it generates internal heat, leading to an increase in internal heat. Due to the increase in the number of wire cores and protective layers inside the cable, the rate of heating of the cable decreases. The accumulation of heat in the cable will affect its service life.

[0006] Therefore, we propose a photoelectric composite flexible high-voltage reel cable to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a photoelectric composite flexible high-voltage reel cable to solve the problem mentioned in the background art that current cables on the market are constructed with various layers to achieve buffering and increase the load-bearing capacity of the cable. However, when the cable transmits electricity, it generates internal heat, leading to an increase in internal heat. Due to the increase in the number of wire cores and protective layers inside the cable, the heating rate of the cable decreases, and the accumulation of heat in the cable affects its service life.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a photoelectric composite flexible high-voltage reel cable, comprising a polyethylene outer sheath, a double-sided plastic-coated steel strip connected to the inner side of the polyethylene outer sheath, an insulating strip connected to the inner side of the double-sided plastic-coated steel strip, a crack-resistant protective sleeve connected to the inner side of the insulating strip, and a power cord body, a filler rope, a reinforcing member, and an optical fiber body distributed sequentially from top to bottom on the inner side of the crack-resistant protective sleeve;

[0009] Also includes:

[0010] The power cord, filler rope, and optical fiber are distributed around the periphery of the reinforcing member;

[0011] An inner filling groove is formed inside the crack-resistant protective sleeve, and an inner flexible protective sleeve is connected to the middle of the inner filling groove. An outer arc-shaped groove is formed on the outer side of the inner flexible protective sleeve. The power cord, filling rope and optical fiber are respectively attached to the outer side of the outer arc-shaped groove. The reinforcing member is attached to and passes through the middle of the inner flexible protective sleeve.

[0012] A metal heat dissipation column sequentially penetrates the polyethylene outer sheath, double-sided plastic-coated steel strip, insulating strip, and crack-resistant protective sleeve;

[0013] An active groove is formed inside the polyethylene outer sheath, and a rubber air bladder is bonded to the inside of the active groove. The other side of the active groove is filled with movable ball bearings. One side of the rubber air bladder is connected to a delivery pipe, and the other end of the delivery pipe is connected to the metal heat dissipation column.

[0014] The mounting groove is formed inside the double-sided plastic-coated steel strip, and the conveying pipe is fitted through the inside of the mounting groove.

[0015] Preferably, the power cord includes an outer power cord rubber sheath and an inner power cord core, and the inner power cord core is distributed inside the outer power cord rubber sheath. This design can protect the power cord.

[0016] Preferably, the optical fiber body includes an outer optical fiber rubber sheath and an inner optical fiber core, and the inner optical fiber core is distributed inside the outer optical fiber rubber sheath. This design can protect the optical fiber.

[0017] Preferably, the crack-resistant protective sleeve is made of metal wire mesh to prevent the cable from breaking due to being suspended in the air and subjected to force.

[0018] Preferably, the power cord, filler rope, and optical fiber are distributed between the inner filling groove and the inner flexible protective sleeve. The inner flexible protective sleeve separates and assembles the power cord, filler rope, optical fiber, and reinforcing member. The inner filling groove is filled with flexible particles. This design can use the flexible particles in the inner filling groove and the inner flexible protective sleeve to provide flexible protection for the cable and avoid mutual collision and wear between the internal power cord, filler rope, optical fiber, and reinforcing member.

[0019] Preferably, one end of the metal heat dissipation column, which has a hollow internal structure, extends into the inner filling groove, and the other end of the metal heat dissipation column penetrates the polyethylene outer sheath. The end of the metal heat dissipation column that extends into the inner filling groove has a closed structure, and the other end of the metal heat dissipation column has an open structure. This design can use the metal heat dissipation column to dissipate heat from the cable and prevent moisture from entering the cable.

[0020] Preferably, the movable groove has an arc-shaped structure, and the movable groove is distributed at equal angles inside the polyethylene outer sheath.

[0021] Preferably, the rubber airbag and the metal heat dissipation column are interconnected through the delivery pipe, and the delivery pipe has an arc-shaped structure. This design can deliver the airflow in the rubber airbag to the metal heat dissipation column, thereby accelerating the heat dissipation speed of the metal heat dissipation column.

[0022] Preferably, the outer surface of the movable ball is smooth, and the movable ball can roll within the movable groove. This design utilizes the rolling of the movable ball to compress the rubber airbag and transport airflow.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] (1) The optoelectronic composite flexible high voltage drum cable is provided with an inner flexible protective sleeve and an inner filling groove filled with flexible particles. The inner flexible protective sleeve separates the power line body, filling rope, optical fiber body and reinforcing member, avoiding the wear and tear caused by the force collision between the power line body, filling rope, optical fiber body and reinforcing member, and buffering the shaking force it receives. With the movement of the flexible particles in the inner filling groove, it can quickly perform elastic buffering and provide flexible protection for the cable.

[0025] (2) The photoelectric composite flexible high-voltage drum cable is equipped with a hollow metal heat dissipation column. The metal heat dissipation column can dissipate heat from the cable. When the high-altitude cable is blown by the wind and shakes, the moving ball can repeatedly squeeze the rubber air bag, so that the rubber air bag can draw in and blow out air through the delivery pipe and the metal heat dissipation column. The airflow flows in the metal heat dissipation column, which can accelerate the heat dissipation speed of the metal heat dissipation column, thereby accelerating the heat dissipation of the cable.

[0026] (3) In this optoelectronic composite flexible high-voltage reel cable, the end of the metal heat sink column that extends into the inner filling groove is a closed structure, and the end of the metal heat sink column that extends into the outside is an open structure. By using the metal heat sink column with the lower end sealed and the rubber air bag to block, rainwater is prevented from entering the cable. Due to the airflow, rainwater can be sprayed out from the metal heat sink column. Moreover, the heat conduction of the metal heat sink column and the sunlight when the weather is sunny can cause the moisture in the metal heat sink column to evaporate, which not only ensures the rapid dissipation of heat from the cable, but also prevents moisture from entering the cable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the anti-crack protective sleeve of the present invention;

[0029] Figure 3 This is a schematic cross-sectional view of the present invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the diagram;

[0031] Figure 5 This is a schematic cross-sectional view of the polyethylene outer sheath of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the inner flexible protective sleeve of the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the rubber airbag of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the delivery pipe of the present invention.

[0035] In the diagram: 1. Polyethylene outer sheath; 2. Double-sided plastic-coated steel tape; 3. Insulating tape; 4. Crack-resistant protective sleeve; 5. Inner filling groove; 6. Power cord body; 601. Outer power cord rubber sheath; 602. Inner power cord core; 7. Filler rope; 8. Optical fiber body; 801. Outer optical fiber rubber sheath; 802. Inner optical fiber core; 9. Reinforcing member; 10. Inner flexible protective sleeve; 11. Metal heat dissipation column; 12. Movable groove; 13. Movable ball bearing; 14. Rubber airbag; 15. Conveying pipe; 16. Mounting groove; 17. Outer arc groove. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-8 The present invention provides the following technical solution: a photoelectric composite flexible high-voltage reel cable.

[0038] Example 1:

[0039] The fixed flexible layer provides a limited buffering method for external forces and cannot be combined with a movable flexible buffer mechanism for rapid force release. Therefore, to solve this technical problem, this embodiment also includes a polyethylene outer sheath 1. The inner side of the polyethylene outer sheath 1 is connected to a double-sided plastic-coated steel strip 2, and the inner side of the double-sided plastic-coated steel strip 2 is connected to an insulating strip 3. The inner side of the insulating strip 3 is connected to a crack-resistant protective sleeve 4. The inner side of the crack-resistant protective sleeve 4 has, from top to bottom, a power cord 6, a filling rope 7, a reinforcing member 9, and an optical fiber 8. The power cord 6, the filling rope 7, and the optical fiber 8 are distributed around the reinforcing member 9. An inner filling groove 5 is formed inside the crack-resistant protective sleeve 4, and the middle of the inner filling groove 5 is connected to an inner flexible protective sleeve 10. The outer side of the inner flexible protective sleeve 10 has an outer arc-shaped groove 17, and the outer side of the outer arc-shaped groove 17 is respectively attached to the power cord 6, the filling rope 7, and the optical fiber 8. The reinforcing member 9 is attached and penetrates the middle of the inner flexible protective sleeve 10.

[0040] The power cord body 6 includes an outer power cord rubber sheath 601 and an inner power cord core 602, with the inner power cord core 602 distributed inside the outer power cord rubber sheath 601. The optical fiber body 8 includes an outer optical fiber rubber sheath 801 and an inner optical fiber core 802, with the inner optical fiber core 802 distributed inside the outer optical fiber rubber sheath 801. The crack-resistant protective sleeve 4 is made of metal wire mesh to prevent the cable from breaking due to suspended stress. The power cord body 6, the filler rope 7, and the optical fiber body 8 are distributed between the inner filling groove 5 and the inner flexible protective sleeve 10, and the inner flexible protective sleeve 10 separates and assembles the power cord body 6, the filler rope 7, the optical fiber body 8, and the reinforcing member 9, and the inner filling groove 5 is filled with flexible particles.

[0041] The working principle of this embodiment: When the cable is working at height, the cable is composed of a polyethylene outer sheath 1, double-sided plastic-coated steel tape 2, insulation tape 3, crack-resistant protective sleeve 4, power cord body 6, filler rope 7, optical fiber body 8, and reinforcing member 9. The polyethylene outer sheath 1, double-sided plastic-coated steel tape 2, and insulation tape 3 provide protection and insulation for the cable. The crack-resistant protective sleeve 4 is made of metal wire mesh, which can improve the tensile and fracture resistance of the cable and prevent the cable from breaking due to suspended stress. The power cord body 6, filler rope 7, optical fiber body 8, and reinforcing member 9 are protected and assembled in the inner filling groove 5 formed by the polyethylene outer sheath 1, double-sided plastic-coated steel tape 2, insulation tape 3, and crack-resistant protective sleeve 4. An inner flexible protective sleeve 10 is installed between the power cord body 6, filler rope 7, optical fiber body 8, and reinforcing member 9. The power cord body 6, filler rope 7, optical fiber body 8, and reinforcing member 9 are separated to prevent wear and tear caused by force collision between them. The inner flexible protective sleeve 10 buffers the shaking force it receives. The filler rope 7 further buffers the overall force on the cable, while the reinforcing member 9 strengthens the overall cable's robustness. The inner filling groove 5 is filled with flexible particles. When under force, the flexible particles can elastically buffer and move within the inner filling groove 5, further providing flexible protection for the cable. The power cord body 6 includes a mesh-like outer power cord rubber sheath 601 and an inner power cord core 602 to reduce wear on the power cord body 6. The optical fiber body 8 includes a mesh-like outer optical fiber rubber sheath 801 and an inner optical fiber core 802 to reduce wear on the optical fiber body 8 and improve the overall safety protection performance of the cable.

[0042] Example 2:

[0043] When a cable transmits electricity, it generates internal heat, leading to an increase in internal heat. The increased number of wire cores and protective layers within the cable slows down the heating rate. The accumulated heat can affect the cable's lifespan. Therefore, to address this technical problem, this embodiment also includes a metal heat dissipation column 11, which sequentially passes through a polyethylene outer sheath 1, a double-sided plastic-coated steel strip 2, an insulating strip 3, and a crack-resistant protective sleeve 4; a movable groove 12, located inside the polyethylene outer sheath 1, with a rubber airbag 14 bonded to its interior; and a movable ball bearing 13 filling the other side of the movable groove 12. One side of the rubber airbag 14 is connected to a delivery pipe 15, and the other end of the delivery pipe 15 is connected to the metal heat dissipation column 11; and an installation groove 16, located inside the double-sided plastic-coated steel strip 2, with the delivery pipe 15 fitting snugly through its interior.

[0044] One end of the hollow metal heat sink 11 extends into the inner filling groove 5, and the other end of the metal heat sink 11 penetrates the polyethylene outer sheath 1. The end of the metal heat sink 11 extending into the inner filling groove 5 has a closed structure, while the other end has an open structure. The movable groove 12 has an arc-shaped structure and is distributed at equal angles inside the polyethylene outer sheath 1. The rubber airbag 14 and the metal heat sink 11 are interconnected through a delivery pipe 15, which also has an arc-shaped structure. The outer surface of the movable ball 13 has a smooth structure, and the movable ball 13 can roll within the movable groove 12.

[0045] Working principle of this embodiment: The metal heat dissipation column 11 can dissipate heat from the cable. The cable, at a high altitude, sways due to wind, causing the movable ball bearing 13 in the movable groove 12 to roll. When the movable ball bearing 13 rolls to the point of squeezing the rubber airbag 14, the airflow inside the rubber airbag 14 is transported to the metal heat dissipation column 11 through the delivery pipe 15, thus venting the airflow to the outside. When the movable ball bearing 13 rolls to the point of releasing the pressure on the rubber airbag 14, the rubber airbag 14 can return to its original position and inflate, allowing external airflow to enter the rubber airbag 14 along the metal heat dissipation column 11 and the delivery pipe 15. The flow of gas can be used to accelerate the heat dissipation of the metal heat sink 11, thereby accelerating the heat dissipation of the cable. In rainy weather, the metal heat sink 11 with its lower end sealed and the rubber air bag 14 prevent rainwater from entering the cable. When the airflow is pushed out, the rainwater can be sprayed out from the metal heat sink 11 due to the action of the airflow. Moreover, due to the heat conduction of the metal heat sink 11 and the sunlight when the weather is sunny, the moisture inside the metal heat sink 11 can evaporate, which not only ensures the rapid dissipation of heat from the cable, but also prevents moisture from entering the cable.

[0046] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0047] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A photoelectric composite flexible high-voltage reel cable, comprising a polyethylene outer sheath (1), wherein a double-sided plastic-coated steel strip (2) is connected to the inner side of the polyethylene outer sheath (1), and an insulating strip (3) is connected to the inner side of the double-sided plastic-coated steel strip (2), and a crack-resistant protective sleeve (4) is connected to the inner side of the insulating strip (3), and a power cord body (6), a filler rope (7), a reinforcing member (9), and an optical fiber body (8) are distributed sequentially from top to bottom on the inner side of the crack-resistant protective sleeve (4); Its features are: Also includes: The power cord (6), filler rope (7) and optical fiber (8) are distributed around the reinforcing member (9); An inner filling groove (5) is formed inside the crack-resistant protective sleeve (4), and an inner flexible protective sleeve (10) is connected to the middle of the inner filling groove (5). An outer arc-shaped groove (17) is formed on the outer side of the inner flexible protective sleeve (10). The outer side of the outer arc-shaped groove (17) is respectively attached to the power cord body (6), the filling rope (7) and the optical fiber body (8). The reinforcing member (9) is attached through the middle of the inner flexible protective sleeve (10). Metal heat dissipation column (11) passes through the polyethylene outer sheath (1), double-sided plastic-coated steel strip (2), insulating strip (3) and crack-resistant protective sleeve (4) in sequence. An active groove (12) is formed inside the polyethylene outer sheath (1), and a rubber airbag (14) is bonded to the inside of the active groove (12). The other side of the active groove (12) is filled with a movable ball (13). One side of the rubber airbag (14) is connected to a delivery pipe (15), and the other end of the delivery pipe (15) is connected to the metal heat sink column (11). The mounting groove (16) is formed inside the double-sided plastic-coated steel strip (2), and the conveying pipe (15) is fitted through the inside of the mounting groove (16). One end of the metal heat sink column (11), which has a hollow internal structure, extends into the inner filling groove (5), and the other end of the metal heat sink column (11) penetrates the polyethylene outer sheath (1). The end of the metal heat sink column (11) that extends into the inner filling groove (5) is a closed structure, and the other end of the metal heat sink column (11) is an open structure. The outer surface of the movable ball (13) is smooth, and the movable ball (13) can roll in the movable groove (12).

2. The optoelectronic composite flexible high-voltage reel cable according to claim 1, characterized in that: The power cord body (6) includes an outer power cord rubber sheath (601) and an inner power cord core (602), and the inner power cord core (602) is distributed inside the outer power cord rubber sheath (601).

3. The photoelectric composite flexible high-voltage reel cable according to claim 1, characterized in that: The optical fiber body (8) includes an outer optical fiber rubber sheath (801) and an inner optical fiber core (802), and the inner optical fiber core (802) is distributed inside the outer optical fiber rubber sheath (801).

4. The optoelectronic composite flexible high-voltage reel cable according to claim 1, characterized in that: The anti-crack protective sleeve (4) is made of metal wire mesh to prevent the cable from breaking due to being suspended in the air and subjected to force.

5. The optoelectronic composite flexible high-voltage reel cable according to claim 1, characterized in that: The power cord (6), filler rope (7) and optical fiber (8) are distributed between the inner filling groove (5) and the inner flexible protective sleeve (10), and the inner flexible protective sleeve (10) separates and assembles the power cord (6), filler rope (7), optical fiber (8) and reinforcing member (9), and the interior of the inner filling groove (5) is filled with flexible particles.

6. The optoelectronic composite flexible high-voltage reel cable according to claim 1, characterized in that: The movable groove (12) has an arc-shaped structure, and the movable groove (12) is distributed at equal angles inside the polyethylene outer sheath (1).

7. The optoelectronic composite flexible high-voltage reel cable according to claim 1, characterized in that: The rubber airbag (14) and the metal heat sink (11) are connected to each other through the delivery pipe (15), and the delivery pipe (15) has an arc-shaped structure.

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