A flame-retardant electric wire and cable

Abstract

This utility model discloses a flame-retardant wire and cable, comprising an installation rod, a conductive mechanism on the annular surface of the installation rod, a flame-retardant mechanism on the outer annular surface of the conductive mechanism, a protective mechanism on the outer annular surface of the flame-retardant mechanism, and a shielding layer fixedly connected to the outer annular surface of the protective mechanism. Through this structure, by incorporating the conductive mechanism, flame-retardant mechanism, and protective mechanism, the conductive mechanism is designed to resist oxidation even at high temperatures, ensuring current flow. Furthermore, the flame-retardant mechanism, by adding highly efficient flame retardants to both the outer sheath and insulation layer of the cable, effectively enhances the cable's flame-retardant performance in a fire, preventing the spread of flames. Finally, the protective mechanism protects the internal structure of the wire and cable from damage by strong impacts, effectively improving the fire resistance of the wire and cable.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, specifically to a flame-retardant wire and cable. Background Technology

[0002] With societal development, power systems are widely used in various buildings, transportation facilities, and other fields. However, in high-temperature environments or fire accidents, electrical wires and cables are susceptible to fire damage, leading to fire spread, power outages, and in severe cases, threatening the safety of people and property. Traditional electrical wires and cables lack effective protection measures in fire environments, resulting in poor fire resistance and difficulty in meeting increasingly stringent safety requirements. Therefore, developing electrical wires and cables with excellent flame-retardant properties that can effectively prevent the spread of flames in fire situations is of paramount importance. Summary of the Invention

[0003] This utility model provides a flame-retardant wire and cable that, through the setting of a conductive mechanism, is not easily oxidized under high temperatures, ensuring current flow. Furthermore, by setting a flame-retardant mechanism, highly efficient flame retardants are added to both the outer sheath and the insulation layer of the cable. The flame retardants can effectively improve the flame-retardant performance of the cable in a fire and prevent the spread of flames. Finally, by setting a protective mechanism, the internal structure of the wire and cable is protected from damage when subjected to strong impacts, effectively improving the fire resistance of the wire and cable.

[0004] To achieve the above objectives, a flame-retardant wire and cable is provided, including a mounting rod. A conductive mechanism is provided on the annular surface of the mounting rod, a flame-retardant mechanism is provided on the outer annular surface of the conductive mechanism, a protective mechanism is provided on the outer annular surface of the flame-retardant mechanism, a shielding layer is fixedly connected to the outer annular surface of the protective mechanism, and an outer sheath is fixedly connected to the outer annular surface of the shielding layer. The mounting rod facilitates the installation of the conductive mechanism, the shielding layer facilitates shielding against external electromagnetic interference, and the protective sheath facilitates the protection of the internal structure of the wire and cable.

[0005] According to the flame-retardant wire and cable, the conductive mechanism includes a partition, a conductive wire, and an insulating layer. The partition is fixedly connected to the outer annular surface of the mounting rod. There are multiple partitions, and the partitions are set to facilitate the separation of the conductive wires.

[0006] According to the flame-retardant wire and cable, the conductive wire is fixedly connected to the outer annular surface of the mounting rod. There are multiple conductive wires, and the insulation layer is fixedly connected to the annular surface of the conductive wire. The conductive wire is provided to facilitate stable current transmission, and the insulation layer is provided to prevent leakage.

[0007] According to the flame-retardant wire and cable, the flame-retardant mechanism includes a flame-retardant layer, a heat-absorbing tube, and a flame retardant. The flame-retardant layer is fixedly connected to the outer annular surface of the insulation layer. The flame-retardant layer is provided to facilitate the protection of the internal conductive mechanism from high temperature.

[0008] According to the flame-retardant wire and cable, the heat-absorbing tube is fixedly installed inside the flame-retardant layer, and there are multiple heat-absorbing tubes. The flame retardant is fixedly connected to the outer annular surface of the flame-retardant layer. The heat-absorbing tube is installed to facilitate heat absorption.

[0009] According to the flame-retardant wire and cable, the protective mechanism includes a buffer layer, a buffer spiral, a protective layer, and a flame-retardant film. The buffer layer is fixedly connected to the outer annular surface of the flame retardant. The buffer layer is provided to facilitate the protection of the internal structure.

[0010] According to the flame-retardant wire and cable, the buffer spiral is fixedly disposed inside the buffer layer, the protective layer is fixedly connected to the outer annular surface of the buffer layer, and the flame-retardant film is fixedly connected to the outer annular surface of the protective layer. The flame-retardant film is provided to facilitate the enhancement of the flame-retardant effect.

[0011] The beneficial effects of this utility model are as follows: By setting up a conductive mechanism, a flame-retardant mechanism, and a protective mechanism, the conductive mechanism is less prone to oxidation under high temperatures, ensuring current flow. Furthermore, the flame-retardant mechanism adds highly efficient flame retardants to both the outer sheath and insulation layer of the cable, effectively improving the cable's flame-retardant performance in a fire and preventing the spread of flames. Finally, the protective mechanism protects the internal structure of the wire and cable from damage when subjected to strong impacts, effectively improving the fire resistance of the wire and cable.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a front view of the overall structure of a flame-retardant wire and cable according to this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of a flame-retardant wire and cable according to the present invention.

[0016] Figure 3 This is a rear view of the overall structure of a flame-retardant wire and cable according to this utility model.

[0017] Figure 4This is a partial structural diagram of a flame-retardant wire and cable according to the present invention.

[0018] Legend:

[0019] 1. Mounting rod; 2. Conductive mechanism; 201. Partition plate; 202. Conductive wire; 203. Insulation layer; 3. Flame retardant mechanism; 301. Flame retardant layer; 302. Heat absorption tube; 303. Flame retardant; 4. Protective mechanism; 401. Buffer layer; 402. Buffer spiral; 403. Protective layer; 404. Flame retardant film; 5. Shielding layer; 6. Outer sheath. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figures 1 to 4 This utility model discloses a flame-retardant wire and cable, comprising a mounting rod 1, a conductive mechanism 2 on the annular surface of the mounting rod 1, a flame-retardant mechanism 3 on the outer annular surface of the conductive mechanism 2, a protective mechanism 4 on the outer annular surface of the flame-retardant mechanism 3, a shielding layer 5 fixedly connected to the outer annular surface of the protective mechanism 4, and an outer sheath 6 fixedly connected to the outer annular surface of the shielding layer 5. The shielding layer 5 and the outer sheath 6 adopt a double-layer structure, wherein the outer sheath 6 is made of flame-retardant PVC material, which has high fire resistance and can effectively suppress the spread of flames in the event of a fire. The inner shielding layer 5 shields electromagnetic radiation while being made of low-smoke halogen-free (LSZH) material, ensuring that no toxic gases are released in the event of a fire and reducing smoke at the fire scene.

[0022] The conductive mechanism 2 includes a partition 201, conductive wires 202, and an insulation layer 203. Multiple partitions 201 are fixedly connected to the outer annular surface of the mounting rod 1. Multiple conductive wires 202 are also fixedly connected to the outer annular surface of the mounting rod 1. The insulation layer 203 is fixedly connected to the annular surface of the conductive wires 202. The conductors of the conductive wires 202 are made of tin-plated copper, which has good conductivity and oxidation resistance. It is not prone to oxidation at high temperatures, ensuring smooth current flow. The insulation layer 203 is made of glass fiber reinforced material, which has extremely strong high-temperature resistance. When the cable is exposed to high temperatures or comes into contact with a fire source, the strength and heat resistance of the glass fiber effectively prevent the insulation material from melting or cracking, maintaining the cable's insulation. Thus, even in the event of a fire, the internal electrical transmission system of the cable can still operate stably, ensuring that the power system is not interrupted. Furthermore, the glass fiber reinforced material can form a protective film at high temperatures, slowing down the erosion of the fire source and further enhancing the cable's safety.

[0023] The flame-retardant mechanism 3 includes a flame-retardant layer 301, heat-absorbing tubes 302, and a flame retardant 303. The flame-retardant layer 301 is fixedly connected to the outer annular surface of the insulation layer 203. Multiple heat-absorbing tubes 302 are fixedly disposed inside the flame-retardant layer 301. The flame retardant 303 is fixedly connected to the outer annular surface of the flame-retardant layer 301. The flame-retardant layer 301 helps improve the stability of the cable in high-temperature environments, enabling the cable to maintain its function for a longer period during a fire, preventing the spread of fire, and reducing the risk of power outages and equipment damage. The flame retardant 303 inhibits the spread of flames when heated, reducing the rate of cable combustion, thereby extending the safe operating time of the cable in a fire.

[0024] The protective mechanism 4 includes a buffer layer 401, a buffer spiral 402, a protective layer 403, and a flame-retardant film 404. The buffer layer 401 is fixedly connected to the outer annular surface of the flame retardant 303. The buffer spiral 402 is fixedly disposed inside the buffer layer 401. The protective layer 403 is fixedly connected to the outer annular surface of the buffer layer 401, and the flame-retardant film 404 is fixedly connected to the outer annular surface of the protective layer 403. The buffer layer 401 and the buffer spiral 402 can buffer external impacts and maintain the stability of the internal structure.

[0025] Working Principle: In use, the wires and cables are first installed at the desired location. In the event of a fire, the outer sheath 6 acts as the outermost protective layer for the wires and cables, its main function being to prevent external fire sources from directly contacting the internal conductive mechanism 2 and flame-retardant mechanism 3. This sheath is made of flame-retardant PVC or other flame-retardant materials, possessing high fire resistance. When a fire source comes into contact with the cable, the outer sheath 6 rapidly heats up and forms a char layer, limiting the spread of flames and effectively isolating the fire source, reducing the expansion of the fire. The flame retardant in the PVC material releases flame-suppressing gases when heated, further enhancing its flame-retardant effect. The buffer layer 401 is made of elastic material, working in conjunction with the buffer spiral 402 to cushion impacts and prevent damage to the internal components of the wires and cables. If flames penetrate the flame-retardant mechanism 3, the flame retardant 303 is released. The flame retardant 303 inhibits the spread of flames when heated, reducing the rate of cable combustion and thus extending the cable's safe operating time in a fire. The flame-retardant layer 301 helps improve the stability of the cable in high-temperature environments, enabling the cable to maintain its function for a longer period of time during a fire, preventing the spread of fire, and reducing the risk of power outages and equipment damage. The heat-absorbing tube 302 absorbs the heat received by the flame-retardant layer 301, preventing the insulation layer 203 from being burned by high temperatures. The internal conductive wires 202 are separated by the partition 201, so even if one wire is damaged, the others can continue to work normally.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flame-retardant wire and cable, characterized in that, The device includes a mounting rod (1), a conductive mechanism (2) is provided on the annular surface of the mounting rod (1), a flame-retardant mechanism (3) is provided on the outer annular surface of the conductive mechanism (2), a protective mechanism (4) is provided on the outer annular surface of the flame-retardant mechanism (3), a shielding layer (5) is fixedly connected to the outer annular surface of the protective mechanism (4), and an outer sheath (6) is fixedly connected to the outer annular surface of the shielding layer (5). The flame-retardant mechanism (3) includes a flame-retardant layer (301), a heat-absorbing tube (302), and a flame retardant (303). The flame-retardant layer (301) is fixedly connected to the outer annular surface of the insulating layer (203). The heat-absorbing tube (302) is fixedly disposed inside the flame-retardant layer (301). There are multiple heat-absorbing tubes (302). The flame retardant (303) is fixedly connected to the outer annular surface of the flame-retardant layer (301).

2. The flame-retardant electric wire and cable according to claim 1, wherein The conductive mechanism (2) includes a partition (201), a conductive wire (202) and an insulating layer (203). The partition (201) is fixedly connected to the outer annular surface of the mounting rod (1), and there are multiple partitions (201).

3. The flame-retardant electric wire and cable according to claim 2, wherein The conductive wire (202) is fixedly connected to the outer annular surface of the mounting rod (1). There are multiple conductive wires (202), and the insulating layer (203) is fixedly connected to the annular surface of the conductive wire (202).

4. The flame-retardant electric wire and cable according to claim 1, wherein The protective mechanism (4) includes a buffer layer (401), a buffer spiral (402), a protective layer (403), and a flame-retardant film (404). The buffer layer (401) is fixedly connected to the outer annular surface of the flame retardant (303).

5. The flame-retardant electric wire and cable according to claim 4, wherein The buffer spiral (402) is fixedly disposed inside the buffer layer (401), the protective layer (403) is fixedly connected to the outer annular surface of the buffer layer (401), and the flame-retardant film (404) is fixedly connected to the outer annular surface of the protective layer (403).

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