Double-layer braided wire cable

Abstract

The utility model discloses a double-layer braided wire cable, and relates to the field of cables, the double-layer braided wire cable comprises a protective sleeve, a fireproof layer is movably sleeved in the protective sleeve, a second filling strip is fixed on one side, close to the protective sleeve, of the fireproof layer, a braided layer is fixed on one side of the second filling strip, and a spacing layer is fixed on the inner wall of the braided layer. A first wire is movably connected to the middle of the spacing layer in a sleeved mode, and a plurality of second wires are movably connected to the middle of the fireproof layer and the middle of the weaving layer in a sleeved mode. When the cable is under pressure, pressure is applied to the braid layer through the spacing layer, external pressure to the first wire and the second wire is reduced through the braid layer, and meanwhile, the internal triangular first filling strip can penetrate through the gap of the second wire for supporting, so that the first wire and the second wire are effectively protected, and the service life of the cable is prolonged. And the safety of the first wire and the second wire is improved, so that the effect of improving the safety is achieved.

Description

Technical Field

[0001] The present application relates to the field of cables, and in particular to a double-layer braided cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, typically consisting of several or several groups of conductors. Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, and aluminum alloy cables. They are composed of single or multiple strands of conductor and an insulating layer, and are used to connect circuits and electrical appliances. Cables can be categorized as DC cables or AC cables, depending on the system used in photovoltaic power plants.

[0003] Existing cables have poor safety performance. When subjected to external compression, they are prone to severe deformation, causing damage to the wires inside the cable, resulting in affected electrical conductivity of the cable. At the same time, existing cables usually only have simple fillers to fill the gaps between the wires. It is common for multiple wires to fit together, while the filler is located on one side. Utility Model Content

[0004] In order to solve the problem that when subjected to external extrusion, severe deformation is likely to occur, and the wires inside the cable are damaged, resulting in the conductive performance of the cable being affected, the present application provides a double-layer braided cable.

[0005] The double-layer braided cable provided in the present application adopts the following technical solution: it includes a protective sleeve, a fireproof layer is movably connected inside the protective sleeve, a second filling strip is fixed to the side of the fireproof layer close to the protective sleeve, a braided layer is fixed to one side of the second filling strip, an isolation layer is fixed to the inner wall of the braided layer, a first conductor is movably connected in the middle of the isolation layer, a second conductor is movably connected in the middle of the fireproof layer and the braided layer, a plurality of second conductors are provided, and the first filling strip is movably connected in the middle of the plurality of second conductors.

[0006] By adopting the above technical solution, the isolation layer exerts pressure on the braided layer, and at the same time, the external pressure on the first wire and the second wire is reduced through the braided layer. At the same time, the internal triangular first filling strip can also pass through the gap of the second wire to provide support, thereby effectively protecting the first wire and the second wire, and improving the safety of the first wire and the second wire.

[0007] Preferably, four second filling strips are provided, and each of the second filling strips is filled with a plurality of polygonal elastic materials.

[0008] By adopting the above technical solution, the second filling strips made of multiple elastic materials have the function of resisting extrusion, and at the same time can provide a certain elasticity to facilitate recovery to the original shape after the cable is bent.

[0009] Preferably, four groups of the first wires are provided, each group of the first wires is provided with two first wires, the four groups of the first wires and the four second filling strips are arranged in an interlaced manner, the first wires include a first conductor, and the outer wall of the first conductor is wrapped with a first wire sleeve.

[0010] By adopting the above technical solution, the four second filling strips separate the four groups of first conductive wires, thereby preventing multiple conductive wires from being piled up in one place and overheating during conduction.

[0011] Preferably, six second wires are provided, and the second wires include a second wire sleeve, and the outer wall of the second wire sleeve is wrapped with a second conductor.

[0012] By adopting the above technical solution, the second conductor is separated from the first conductor, so that the conductors inside the cable are divided into two parts.

[0013] Preferably, the material of the first filling strip is the same as that of the second filling strip, and the horizontal cross-section of the first filling strip is in the shape of an equilateral triangle.

[0014] By adopting the above technical solution, the internal triangular first filling strip can pass through the gap of the second wire to provide support, thereby supporting and protecting the first wire and the second wire.

[0015] Preferably, the braided layer includes a first braided layer and a second braided layer, the first braided layer is close to the side of the isolation layer, and the braiding density of the first braided layer is greater than the braiding density of the second braided layer.

[0016] By adopting the above technical solution, compared with a double-layer braided layer of the same density, the braided layer formed by sparse and dense alternating weaving is softer, and the braided layer formed after wrapping reduces the hardness of the braided layer, making the cable more flexible after being cabled.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. When the cable is subjected to pressure, the insulation layer exerts pressure on the braided layer, thereby alleviating the external pressure on the first and second conductors. Furthermore, the internal triangular first filler strip can pass through the gaps between the second conductors to provide support, thereby effectively protecting the first and second conductors and improving their safety.

[0019] 2. This application separates the four groups of first wires through four second filling strips, and the braided layer separates the second wires from the first wires, so that the wires inside the cable are divided into two parts, avoiding the situation where multiple wires are piled up in one place and overheating occurs during conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a double-layer braided cable according to an embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the structure of the braided layer of the embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the layer structure of the braided layer according to an embodiment of the present application;

[0023] Figure numerals: 1, protective cover; 2, fireproof layer; 3, braided layer; 31, first braided layer; 32, second braided layer; 4, first wire; 41, first conductor; 42, first wire sleeve; 5, isolation layer; 6, second wire; 61, second conductor; 62, second wire sleeve; 7, first filling strip; 8, second filling strip. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0025] An embodiment of the present application discloses a double-layer braided cable, including a protective sleeve 1, a fireproof layer 2 movably connected inside the protective sleeve 1, a second filling strip 8 is fixed to the side of the fireproof layer 2 close to the protective sleeve 1, a braided layer 3 is fixed to one side of the second filling strip 8, an isolation layer 5 is fixed to the inner wall of the braided layer 3, pressure is applied to the braided layer 3 through the isolation layer 5, and at the same time, the braided layer 3 reduces the external pressure on the first wire 4 and the second wire 6, the first wire 4 is movably connected to the middle of the isolation layer 5, the second wire 6 is movably connected to the middle of the fireproof layer 2 and the braided layer 3, multiple second wires 6 are provided, and the first filling strip 7 is movably connected to the middle of the multiple second wires 6, and the internal triangular first filling strip 7 can also pass through the gap of the second wire 6 for support, thereby effectively protecting the first wire 4 and the second wire 6, and improving the safety of the first wire 4 and the second wire 6.

[0026] Among them, there are four second filling strips 8, each of which is filled with multiple polygonal elastic materials. The second filling strips 8 made of multiple elastic materials have the function of resistant to extrusion, and can provide a certain elasticity after the cable is bent to facilitate restoration to its original shape.

[0027] Among them, there are four groups of first wires 4, each group of first wires 4 is provided with two, the four groups of first wires 4 and the four second filling strips 8 are arranged in an interlaced manner, the first wire 4 includes a first conductor 41, the outer wall of the first conductor 41 is wrapped with a first wire sleeve 42, and the four groups of first wires 4 are separated by four second filling strips 8 to avoid multiple wires being piled up in one place and overheating during conduction.

[0028] Among them, six second wires 6 are provided, and the second wires 6 include a second wire sleeve 62, and the outer wall of the second wire sleeve 62 is wrapped with a second conductor 61. The second wires 6 are separated from the first wires 4, so that the internal wires of the cable are divided into two parts.

[0029] Among them, the material of the first filling strip 7 is the same as the filling material of the second filling strip 8, and the horizontal cross-section of the first filling strip 7 is an equilateral triangle. The internal triangular first filling strip 7 can pass through the gap of the second wire 6 to provide support, thereby supporting and protecting the first wire 4 and the second wire 6.

[0030] Among them, the braided layer 3 includes a first braided layer 31 and a second braided layer 32. The first braided layer 31 is close to the side of the isolation layer 5. The braiding density of the first braided layer 31 is greater than the braiding density of the second braided layer 32. Compared with the double-layer braided layer of the same density, the braided layer 3 formed by the sparse and dense staggered weaving is better in softness, which reduces the hardness of the braided layer 3 and makes the cable more flexible after being cabled.

[0031] The implementation principle of the double-layer braided cable of the embodiment of the present application is as follows: when assembling the cable, first, four first conductors 4 are respectively inserted into the gaps of four second filling strips 8. The four second filling strips 8 separate the four groups of first conductors 4. Then, the first conductors 4 are placed outside the first filling strips 7 and inserted into the braided layer 3. The second conductors 6 are separated from the first conductors 4, so that the conductors inside the cable are divided into two parts, avoiding the accumulation of multiple conductors in one place and overheating during conduction. Finally, a protective cover 1 is put on the entire cable using a machine. When in use, the multiple second filling strips 8 made of elastic material have the function of being resistant to extrusion. At the same time, they can provide a certain degree of elasticity to facilitate recovery after the cable is bent. The braided layer 3 woven with a sparse and dense interlaced weaving has better softness, reduces the hardness of the braided layer 3, and makes the cable more flexible after being cabled. When under pressure, the insulation layer 5 applies pressure to the braided layer 3, and the braided layer 3 reduces the external pressure on the first conductors 4 and the second conductors 6. At the same time, the internal triangular first filling strips 7 can also pass through the gaps between the second conductors 6 to provide support, thereby effectively protecting the first conductors 4 and the second conductors 6 and improving the safety of the first conductors 4 and the second conductors 6.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A double-layer braided cable, comprising a protective sheath (1), characterized in that: The protective cover (1) is internally movably connected to a fireproof layer (2), a second filling strip (8) is fixed to the side of the fireproof layer (2) close to the protective cover (1), a braided layer (3) is fixed to one side of the second filling strip (8), an air-insulating layer (5) is fixed to the inner wall of the braided layer (3), a first wire (4) is movably connected to the middle of the air-insulating layer (5), a second wire (6) is movably connected to the middle of the fireproof layer (2) and the braided layer (3), a plurality of the second wires (6) are provided, and a first filling strip (7) is movably connected to the middle of the plurality of the second wires (6).

2. The double-layer braided cable according to claim 1, characterized in that: Four second filling strips (8) are provided, and each second filling strip (8) is filled with a plurality of polygonal elastic materials.

3. The double-layer braided cable according to claim 2, characterized in that: Four groups of the first conductive wires (4) are provided, each group of the first conductive wires (4) is provided with two, the four groups of the first conductive wires (4) and the four second filling strips (8) are arranged in a staggered manner, the first conductive wires (4) include a first conductor (41), and the outer wall of the first conductor (41) is wrapped with a first conductive wire sleeve (42).

4. The double-layer braided cable according to claim 3, characterized in that: Six second wires (6) are provided, and the second wires (6) include a second wire sleeve (62), and the outer wall of the second wire sleeve (62) is wrapped with a second conductor (61).

5. The double-layer braided cable according to claim 2, characterized in that: The material of the first filling strip (7) is the same as the filling material of the second filling strip (8), and the horizontal cross-section of the first filling strip (7) is in the shape of an equilateral triangle.

6. The double-layer braided cable according to claim 5, characterized in that: The braided layer (3) comprises a first braided layer (31) and a second braided layer (32), wherein the first braided layer (31) is close to one side of the isolation layer (5), and the braiding density of the first braided layer (31) is greater than the braiding density of the second braided layer (32).

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