Flame-retardant high-temperature-resistant shielding ultra-light integrated cable

Abstract

The utility model discloses a flame-retardant high-temperature-resistant shielding ultra-light integrated cable which comprises a cable core, the cable core comprises a wire core and a first filling layer, a mica tape layer is arranged outside the cable core, a first light shielding layer is arranged outside the mica tape layer, the first light shielding layer is attached to the mica tape layer, and a second light shielding layer is arranged outside the first light shielding layer. A composite flame-retardant layer is arranged outside the first light shielding layer, a second filling layer is arranged between the composite flame-retardant layer and the first light shielding layer, an armor layer is arranged outside the composite flame-retardant layer, an outer sheath is arranged outside the armor layer, and the outer sheath and the armor layer are formed through extrusion. The flame-retardant structure of the integrated cable adopts a multi-layer composite structure, the flame-retardant and high-temperature-resistant performance is greatly improved, the filling layer is filled with a polypropylene light material, and the second filling layer is internally provided with an air cavity, so that the weight of the cable can be reduced, a buffer protection effect can be achieved when the cable is subjected to external force, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated cables, in particular to a flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable. Background Art

[0002] Cables are typically made up of several or several groups of conductors twisted together into a rope-like structure. Each group of conductors is insulated from each other and often twisted around a core. The entire cable is covered with a highly insulating covering, resulting in internal conduction and external insulation. Integrated cables are specialized cables that integrate various types of wires and cables in a specific order and structure. Through specialized processes and structural designs, these multiple wires and cables are combined into a multi-wire sandwich structure to improve the cable's overall performance and convenience.

[0003] The Chinese patent publication number is CN216719583U, and the authorization announcement date is June 10, 2022. A flame-retardant and high-temperature resistant shielded ultra-light integrated cable includes a protective sleeve, a wrapping layer is fixedly installed inside the protective sleeve, a heat dissipation structure is fixedly installed inside the wrapping layer, a buffer layer is fixedly installed inside the wrapping layer, four inner insulating sleeves are fixedly installed inside the buffer layer, the heat dissipation structure includes a heat dissipation block located inside the wrapping layer, four traction wires are fixedly installed inside the wrapping layer, and the buffer layer is filled with a coolant. This flame-retardant and high-temperature resistant shielded ultra-light integrated cable, by providing a flame-retardant filling layer, when in use, the heat dissipated by the cable core is cooled by the heat dissipation block and the coolant, and the heat is dissipated through the heat dissipation layer and the flame-retardant filling layer, thereby achieving the purpose of quickly dissipating the heat of the cable core and keeping the cable core temperature lower than its external temperature, avoiding the internal operating temperature of the cable core being too high and causing fire hazards.

[0004] The existing integrated cables have a single flame retardant structure, which cannot effectively prevent the spread of fire in the event of a fire, affecting the service life of the cable. The interior of the cable is completely filled with fillers, which increases the weight of the cable, does not meet the ultra-light characteristics of the integrated cable, and cannot meet the demand for use. Utility Model Content

[0005] The purpose of the present utility model is to provide a flame-retardant, high-temperature resistant, shielded, ultra-light integrated cable, so as to solve the problem raised in the above background technology that the existing integrated cable has a single flame-retardant structure, cannot effectively prevent the spread of fire in the event of a fire, and affects the service life of the cable. The interior of the cable is completely filled with fillers, which increases the weight of the cable, does not conform to the ultra-light feature of the integrated cable, and cannot meet the demand for further use.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a flame-retardant and high-temperature resistant shielded ultra-light integrated cable, comprising a cable core, the cable core comprising a wire core and a first filling layer, a mica tape layer being provided on the outside of the cable core, and the mica tape layer being spirally wound and connected on the outside of the cable core, a first light shielding layer being provided on the outside of the mica tape layer, and the first light shielding layer being bonded to the mica tape layer, a composite flame-retardant layer being provided on the outside of the first light shielding layer, a second filling layer being provided between the composite flame-retardant layer and the first light shielding layer, an armor layer being provided on the outside of the composite flame-retardant layer, an outer sheath being provided on the outside of the armor layer, and the outer sheath and the armor layer being formed by extrusion.

[0007] Preferably, the wire core includes a conductor, a second light shielding layer and an inner sheath, and the conductor is formed by twisting multiple copper wires, the second light shielding layer is arranged on the outside of the conductor, and the second light shielding layer is in contact with the conductor, the inner sheath is arranged on the outside of the second light shielding layer, and the second light shielding layer and the inner sheath are extruded.

[0008] Preferably, air cavities are provided inside the second filling layer, and there are six air cavities, which are equidistantly arranged inside the second filling layer.

[0009] Preferably, the composite flame retardant layer includes a first high temperature resistant layer, a high temperature resistant layer and a second flame retardant layer, and the high temperature resistant layer is bonded to the second filling layer, the second flame retardant layer is arranged outside the high temperature resistant layer, and the first high temperature resistant layer is arranged outside the second flame retardant layer.

[0010] Preferably, an anti-interference wire is provided inside the inner sheath, two anti-interference wires are provided, and the anti-interference wire and the inner sheath are provided as one body, and the two anti-interference wires are provided on both sides of the inner sheath.

[0011] Preferably, an identification strip is provided on the outer wall of the inner sheath, and the identification strip and the inner sheath are integrated.

[0012] Preferably, there are five cores, and the five cores are arranged in a circular shape and at equal intervals inside the cable core, and the first filling layer is arranged in the gaps between the five cores.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model device is provided with a composite flame retardant layer. The composite flame retardant layer is composed of a first high-temperature resistant layer, a high-temperature resistant layer and a second flame retardant layer to form a multi-layer structure. The first high-temperature resistant layer is composed of aluminum hydroxide powder and resin. When heated, aluminum hydroxide decomposes and absorbs heat and produces water vapor, thereby diluting the concentration of combustible gas to achieve a flame retardant effect. The second flame retardant layer is made of ceramic silicone rubber. Ceramic silicone rubber has excellent fireproofing, flame retardancy, low smoke, and non-toxic properties. Under high temperature, ceramic powder reacts with silicone rubber to form a self-supporting ceramic body, thereby playing a fire prevention role, and will not produce toxic waste gas or harmful solution, thus avoiding secondary pollution to the surrounding environment after a fire. The high-temperature resistant layer is made of carbon fiber. Carbon fiber has good high-temperature resistance and mechanical strength, and can also reduce the weight of the cable.

[0015] The utility model device is provided with a first filling layer and a second filling layer, both of which are made of polypropylene. The air cavity reduces the amount of the second filling layer and reduces the weight of the cable. The air cavity expands and contracts when subjected to external force and can play a buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 This is a wire core structure diagram of the utility model;

[0018] Figure 3 For the utility model Figure 1 A partial enlarged view of area A;

[0019] Figure 4 This is a cross-sectional view of the composite flame retardant layer of the present invention.

[0020] In the figure: 1. Cable core; 2. Wire core; 3. First filling layer; 4. Mica tape layer; 5. First light shielding layer; 6. Second filling layer; 7. Composite flame retardant layer; 8. Armor layer; 9. Outer sheath; 10. Air cavity; 11. Conductor; 12. Second light shielding layer; 13. Inner sheath; 14. Anti-interference wire; 15. Identification strip; 16. First high-temperature resistant layer; 17. High-temperature resistant layer; 18. Second flame retardant layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4The utility model provides an embodiment: a flame-retardant and high-temperature resistant shielded ultra-light integrated cable, comprising a cable core 1, the cable core 1 comprising a wire core 2 and a first filling layer 3, a mica tape layer 4 being provided on the outside of the cable core 1, and the mica tape layer 4 being spirally wound and connected on the outside of the cable core 1, a first light shielding layer 5 being provided on the outside of the mica tape layer 4, and the first light shielding layer 5 being bonded to the mica tape layer 4, a composite flame-retardant layer 7 being provided on the outside of the first light shielding layer 5, a second filling layer 6 being provided between the composite flame-retardant layer 7 and the first light shielding layer 5, an armor layer 8 being provided on the outside of the composite flame-retardant layer 7, and the outside of the armor layer 8 An outer sheath 9 is provided, and the outer sheath 9 and the armor layer 8 are formed by extrusion. Five cores 2 are provided, and the five cores 2 are arranged equidistantly in a circular shape inside the cable core 1. The first filling layer 3 is provided in the gap between the five cores 2. An air cavity 10 is provided inside the second filling layer 6. Six air cavities 10 are provided, and the six air cavities 10 are equidistantly arranged inside the second filling layer 6. Both the first filling layer 3 and the second filling layer 6 are made of polypropylene. The air cavity 10 reduces the amount of the second filling layer 6 and reduces the weight of the cable. The air cavity 10 expands and contracts when subjected to external force, and can play a buffering role.

[0023] See also Figure 1 and Figure 2 The core 2 includes a conductor 11, a second light shielding layer 12 and an inner sheath 13, and the conductor 11 is twisted by multiple copper wires, the second light shielding layer 12 is arranged on the outside of the conductor 11, and the second light shielding layer 12 is in contact with the conductor 11, the inner sheath 13 is arranged on the outside of the second light shielding layer 12, and the second light shielding layer 12 and the inner sheath 13 are formed by extrusion, and an anti-interference wire 14 is arranged inside the inner sheath 13, and two anti-interference wires 14 are provided, and the anti-interference wires 14 and the inner sheath 13 are connected. The sheath 13 is set as a whole, and two anti-interference wires 14 are set on both sides of the inner sheath 13. An identification strip 15 is set on the outer wall of the inner sheath 13, and the identification strip 15 is set as a whole with the inner sheath 13. The outer sheath 9 and the inner sheath 13 are both made of polyvinyl chloride. Polyvinyl chloride not only has good insulation performance, mechanical strength and corrosion resistance, but also has a light weight. The anti-interference wire 14 effectively resists external low-frequency electromagnetic interference. The identification strip 15 distinguishes the multiple wire cores 2, making it convenient for staff to connect wires as needed.

[0024] See also Figure 1 and Figure 4The composite flame retardant layer 7 includes a first high temperature resistant layer 16, a high temperature resistant layer 17 and a second flame retardant layer 18, and the high temperature resistant layer 17 is bonded to the second filling layer 6, and the second flame retardant layer 18 is arranged on the outside of the high temperature resistant layer 17, and the first high temperature resistant layer 16 is arranged on the outside of the second flame retardant layer 18. The first high temperature resistant layer 16 is composed of aluminum hydroxide powder and resin. Aluminum hydroxide will decompose and absorb heat when heated, and produce water vapor, thereby diluting the concentration of combustible gas to achieve a flame retardant effect. The second flame retardant layer 18 uses ceramic silicone rubber. Ceramic silicone rubber has excellent fireproofing, flame retardancy, low smoke, and non-toxic properties. Under high temperature, ceramic powder will react with silicone rubber to form a self-supporting ceramic body, thereby playing a fire prevention role. No toxic waste gas or harmful solution will be generated, avoiding secondary pollution to the surrounding environment after the fire. The high temperature resistant layer 17 uses carbon fiber. Carbon fiber has good high temperature resistance and mechanical strength, and can also reduce the weight of the cable.

[0025] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable, comprising a cable core (1), characterized in that: The cable core (1) comprises a wire core (2) and a first filling layer (3); a mica tape layer (4) is provided on the outside of the cable core (1), and the mica tape layer (4) is spirally wound and connected on the outside of the cable core (1); a first light shielding layer (5) is provided on the outside of the mica tape layer (4), and the first light shielding layer (5) is in contact with the mica tape layer (4); a composite flame retardant layer (7) is provided on the outside of the first light shielding layer (5); a second filling layer (6) is provided between the composite flame retardant layer (7) and the first light shielding layer (5); an armor layer (8) is provided on the outside of the composite flame retardant layer (7); an outer sheath (9) is provided on the outside of the armor layer (8), and the outer sheath (9) and the armor layer (8) are formed by extrusion.

2. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 1, characterized in that: The wire core (2) comprises a conductor (11), a second light shielding layer (12) and an inner sheath (13), wherein the conductor (11) is formed by twisting a plurality of copper wires, the second light shielding layer (12) is arranged outside the conductor (11), and the second light shielding layer (12) is in contact with the conductor (11), and the inner sheath (13) is arranged outside the second light shielding layer (12), and the second light shielding layer (12) and the inner sheath (13) are formed by extrusion.

3. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 1, characterized in that: Air cavities (10) are provided inside the second filling layer (6), and there are six air cavities (10), and the six air cavities (10) are equidistantly arranged inside the second filling layer (6).

4. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 1, characterized in that: The composite flame retardant layer (7) comprises a first high-temperature resistant layer (16), a high-temperature resistant layer (17) and a second flame retardant layer (18), wherein the high-temperature resistant layer (17) is bonded to the second filling layer (6), the second flame retardant layer (18) is arranged outside the high-temperature resistant layer (17), and the first high-temperature resistant layer (16) is arranged outside the second flame retardant layer (18).

5. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 2, characterized in that: An anti-interference wire (14) is provided inside the inner sheath (13), two anti-interference wires (14) are provided, and the anti-interference wires (14) and the inner sheath (13) are provided as a whole, and the two anti-interference wires (14) are provided on both sides of the inner sheath (13).

6. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 2, characterized in that: An identification strip (15) is provided on the outer wall of the inner sheath (13), and the identification strip (15) and the inner sheath (13) are integrated.

7. The flame-retardant, high-temperature-resistant, shielded, ultra-light integrated cable according to claim 1, characterized in that: Five wire cores (2) are provided, and the five wire cores (2) are arranged in a circular shape at equal intervals inside the cable core (1), and the first filling layer (3) is provided in the gaps between the five wire cores (2).

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