Low-smoke halogen-free flame-retardant home decoration cable

Abstract

The utility model discloses a low smoke zero halogen flame retardant home decoration cable, including oversheath, flame retardant taped covering, cable and packing layer, oversheath wraps the outer surface of flame retardant taped covering, flame retardant taped covering wraps the outer surface of packing layer, the cable is arranged in the packing layer, and the cable passes through the packing layer, and the outer surface of the packing layer is covered with the flame retardant taped covering. And a cooling line made of an EVA material is arranged in the filling layer. The cooling wire is melted into a liquid state when the temperature in the cable is high, so that the temperature in the cable is greatly absorbed, the cable is quickly cooled, the cable is prevented from being overheated, melted and damaged, the cooling effect in the cable is improved, and after the cable is powered off, the cooling wire recovers from the liquid to the solid again after being cooled, and the service life of the cable is prolonged. The cable can be continuously used when the cable skin and the internal wires are damaged, and the cable is not greatly different from a conventional cable in structure, and can be produced through a conventional flame-retardant cable production line.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power cable, concretely is a low smoke halogen -free flame -retardant home decoration cable. BACKGROUND

[0002] The wire is indispensable basic building material in home decoration and is also important content of concealed engineering, and whether the quality of the wire is reliable directly relates to the effect of decoration and the circuit safety of home decoration. The circuit is prone to short circuit after aging and causes fire, especially the old -fashioned residence that does not use flame -retardant cable as conductor wire, and flame is prone to spread along the conductor wire outer skin quickly, so that the fire expands rapidly, and the escape time of personnel is greatly compressed.

[0003] In the patent publication "CN212847827U", the patent name is a flame -retardant cable for home decoration, including the sleeve, a plurality of cable cores are arranged in the sleeve, the surface of the cable core is covered with insulating skin, the inside of the sleeve is filled with fireproof blocking material, the outside of the sleeve is provided with flame -retardant sheath, the flame -retardant sheath and the sleeve are filled with the fireproof blocking material, the outside of the flame -retardant sheath is wrapped with fireproof cloth, the fireproof blocking material is flexible organic blocking material, the fireproof limit of the fireproof blocking material is not less than 3h, the flame -retardant sheath is cross -linked polyethylene insulation polyolefin sheath, and the fireproof cloth is one of glass fiber cloth, basalt fiber cloth and ceramic fiber cloth, which can effectively avoid circuit fire and prevent flame from spreading along the cable when fire occurs.

[0004] In the above scheme, in order to avoid the combustion of the wire in high temperature environment, the flame -retardant cable is added with flame retardant or flame retardant material in the cable, the flame -retardant composition or flame barrier is released in the cable under high temperature environment, the spread of fire is avoided, and the cable usually accelerates the conduction speed of heat in the cable through the filling layer, so that the cable is overheated or short circuit accident in high temperature environment, but the filling layer has limited heat transfer efficiency, and it is difficult to quickly transfer the heat of the high temperature part to other parts when the wire is short -circuited, so that the skin or internal conductor of the flame -retardant home decoration cable is damaged after being subjected to high temperature, so that the cable cannot be used and needs to be replaced. Utility model content

[0005] The utility model aims at providing a kind of low smoke halogen -free flame -retardant home decoration cable, can quickly absorb heat in the cable inside when the temperature in the wire is too high, improve the cooling speed of the overheated cable, avoid the skin or internal conductor of the flame -retardant home decoration cable to be damaged after being subjected to high temperature, improve the cooling effect of the cable, and the structural difference between the cable and conventional cable is little, and it can be produced by conventional flame -retardant cable production line.

[0006] In order to achieve the above-mentioned purpose, a low-smoke halogen-free flame-retardant home cable is provided, which comprises an outer sheath, a flame-retardant wrapping layer, a cable and a filling layer, the outer sheath is coated on the outer surface of the flame-retardant wrapping layer, the flame-retardant wrapping layer is coated on the outer surface of the filling layer, the cable is arranged in the filling layer and penetrates the filling layer, and the cooling wire made of EVA material is arranged in the filling layer. When the temperature in the wire is too high, the cable can quickly absorb heat inside the cable, improve the cooling speed of the overheated cable, avoid the skin or internal wire of the flame-retardant home cable from being damaged due to high temperature, improve the cooling effect of the cable, and the structure of the cable is not much different from that of the conventional cable, and the conventional flame-retardant cable production line can be used for production.

[0007] According to the low-smoke halogen-free flame-retardant home cable, the cable is composed of a core and an insulating layer, and the insulating layer is coated on the outer surface of the core, and the filling layer is located between the insulating layer and the flame-retardant wrapping layer. The insulating layer can also have a high insulation effect when the cable is exposed to the outside, facilitating the connection of the cable with equipment or other cables.

[0008] According to the low-smoke halogen-free flame-retardant home cable, the cooling wire is added with a halogen-free flame retardant. The halogen-free flame retardant is used to make the cooling wire have a flame-retardant effect, avoid the cooling wire from catching fire due to too high heat absorption, and the halogen-free flame retardant does not release toxic and corrosive gases after being heated.

[0009] According to the low-smoke halogen-free flame-retardant home cable, the filling layer is made of flame-retardant polyethylene material. The flame-retardant polyethylene material makes the filling layer also have a certain flame-retardant effect, improving the flame retardance of the cable.

[0010] According to the low-smoke halogen-free flame-retardant home cable, three cables are arranged in the filling layer, and the cooling wires are respectively located between two adjacent cables, and the surfaces of the cooling wires are in contact with the insulating layers. The cooling wires are respectively located between two adjacent cables, so that the cooling wires can absorb heat from both sides of the cable, improving the cooling efficiency of the cable.

[0011] According to the low-smoke halogen-free flame-retardant home cable, a plurality of flame-retardant rings are equidistantly arranged on the outer side of the outer sheath, and the outer sheath penetrates the middle part of the flame-retardant ring, and the outer side end of the flame-retardant ring is coated with a wear-resistant sleeve, and the wear-resistant sleeve is fixedly connected with the outer sheath. The flame-retardant ring is used to release flame-retardant gas when the wear-resistant sleeve is melted under high temperature of the threading pipe, to cool and flame-retard the outside of the cable and the threading pipe, and the wear-resistant sleeve avoids the wear and tear of the flame-retardant ring and delays the aging of the flame-retardant ring.

[0012] According to the low-smoke halogen-free flame-retardant home cable, the flame-retardant ring is made of polyethylene material added with aluminum hydroxide flame retardant, and the wear-resistant sleeve is made of the same material as the outer sheath.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The cooling wire melts into liquid when the temperature in the cable is high, thereby absorbing the temperature in the cable and cooling the cable quickly, avoiding damage caused by overheating and melting of the cable, improving the cooling effect of the cable, and when the cable is powered off, the cooling wire returns to solid from liquid after cooling, so that the cable skin and internal wires can be used continuously when damaged, and the cable has little difference from conventional cables and can be produced by a conventional flame-retardant cable production line.

[0015] 2. When the cable is subjected to high temperature and the outer sheath and the wear-resistant sleeve are melted and damaged, the flame-retardant ring absorbs a large amount of heat, thereby reducing the temperature of the cable surface and making the cable have certain flame retardance.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further illustrated below in combination with the drawings and examples;

[0018] Fig. 1 It is the perspective view of the utility model low-smoke halogen-free flame-retardant home cable;

[0019] Fig. 2 It is the half cutaway view of the utility model low-smoke halogen-free flame-retardant home cable;

[0020] Fig. 3 It is the front view of the utility model low-smoke halogen-free flame-retardant home cable.

[0021] In the drawing: 1, outer sheath; 2, flame-retardant wrapping layer; 3, cable; 4, cooling wire; 5, filling layer; 6, wear-resistant sleeve; 7, flame-retardant ring; 301, wire core; 302, insulating layer. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0023] Please refer to Figs. 1-3 The utility model discloses an embodiment provides a technical scheme: a kind of low smoke halogen-free flame-retardant home cable, outer sheath 1, flame-retardant wrapping layer 2, cable 3 and filling layer 5, outer sheath 1 is covered in the outer surface of flame-retardant wrapping layer 2, the outer side of outer sheath 1 is equidistant and is equipped with several flame-retardant rings 7, and outer sheath 1 penetrates the middle part of flame-retardant ring 7, the outer side end of flame-retardant ring 7 is covered with wear-resistant sleeve 6, and wear-resistant sleeve 6 is fixedly connected with outer sheath 1, flame-retardant ring 7 is used to make wear-resistant sleeve 6 melt when releasing flame-retardant gas under the high temperature state of threading pipe, the outside of cable and threading pipe are cooled, and flame-retardant, wear-resistant sleeve 6 avoids that flame-retardant ring 7 is abraded and delays the aging of flame-retardant ring 7, flame-retardant ring 7 is polyethylene material with added aluminium hydroxide flame retardant, wear-resistant sleeve 6 material is same with outer sheath 1 material, aluminium hydroxide flame retardant makes flame-retardant ring 7 absorb a large amount of heat under high temperature influence, and the outside of cable is cooled, and water vapor is produced to dilute combustible gas, wear-resistant sleeve 6 material is same with outer sheath 1 material, avoid the situation that wear-resistant sleeve 6 is not affected after outer sheath 1 melts, guarantee that flame-retardant ring 7 works normally, flame-retardant wrapping layer 2 is covered in the outer surface of filling layer 5, filling layer 5 is flame-retardant polyethylene material, flame-retardant polyethylene material makes filling layer 5 also have certain flame-retardant effect, improves the flame-retardant property of cable, cable 3 is located in filling layer 5, and cable 3 penetrates filling layer 5, cable 3 is composed of wire core 301 and insulating layer 302, and insulating layer 302 is covered in the outer surface of wire core 301, filling layer 5 is located between insulating layer 302 and flame-retardant wrapping layer 2, insulating layer 302 makes cable 3 also can have higher insulation effect when being exposed to the outside, is convenient for cable 3 and equipment or other cable to be connected, filling layer 5 is equipped with cooling wire 4 of EVA material, cooling wire 4 is added with halogen-free flame retardant, and halogen-free flame retardant is used to make cooling wire 4 have flame-retardant effect, avoid that cooling wire 4 absorbs too high heat and causes fire, and halogen-free flame retardant does not release toxic, corrosive gas after being heated, cable 3 is equipped with three, and cable 3 is circumferentially arranged in filling layer 5, and cooling wire 4 is located between two adjacent cables 3 respectively, and cooling wire 4 surface is in contact with insulating layer 302, cooling wire 4 is located between two adjacent cables 3 respectively so that cooling wire 4 can heat-absorbing cable 3 from the two sides of cable 3, improve the cooling efficiency of cable 3.

[0024] Working principle: when the temperature of the cable is too high or short circuit occurs, the cooling wire 4 absorbs heat and melts into liquid state, using the principle that the internal molecular structure change can release or absorb a large amount of heat, so that the cooling wire 4 absorbs a large amount of heat on the surface of the cable 3 in the process of changing from solid to liquid, thereby rapidly cooling the inside of the cable, avoiding the melting of the insulation layer 302, the filling layer 5 and the outer sheath 1 to cause the damage of the cable skin, after the circuit breaker trips and the power is cut off in the household circuit, the temperature in the cable decreases and returns to normal, the cooling wire 4 gradually cools and solidifies into solid state, so that the cooling wire 4 can continue to be used when the cable is not damaged.

[0025] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A low smoke, zero halogen, flame retardant residential cable comprising: An outer sheath (1), a flame-retardant wrapping layer (2), a cable (3) and a filling layer (5) are characterized in that the outer sheath (1) is coated on the outer surface of the flame-retardant wrapping layer (2), the flame-retardant wrapping layer (2) is coated on the outer surface of the filling layer (5), the cable (3) is arranged in the filling layer (5), and the cable (3) penetrates through the filling layer (5), and the cooling wire (4) made of EVA material is arranged in the filling layer (5).

2. A low smoke zero halogen flame retardant residential cable according to claim 1, wherein: The cable (3) is composed of a wire core (301) and an insulation layer (302), and the insulation layer (302) is coated on the outer surface of the wire core (301), and the filling layer (5) is located between the insulation layer (302) and the flame-retardant wrapping layer (2).

3. The low-smoke halogen-free flame-retardant home decoration cable as described in claim 1, characterized in that: The cooling wire (4) is added with a halogen-free flame retardant.

4. The low-smoke halogen-free flame-retardant home decoration cable as described in claim 1, characterized in that: The filling layer (5) is made of flame-retardant polyethylene material.

5. The low-smoke halogen-free flame-retardant home decoration cable as described in claim 2, characterized in that: The cable (3) is provided with three cables, and the cables (3) are circumferentially arranged in the filling layer (5), the cooling wire (4) is located between two adjacent cables (3), and the surface of the cooling wire (4) is in contact with the insulation layer (302).

6. The low-smoke halogen-free flame-retardant home decoration cable as described in claim 1, characterized in that: The outer side of the outer sheath (1) is provided with a plurality of flame-retardant rings (7) at equal intervals, and the outer sheath (1) penetrates through the middle part of the flame-retardant ring (7), the outer side end of the flame-retardant ring (7) is coated with a wear-resistant sleeve (6), and the wear-resistant sleeve (6) is fixedly connected with the outer sheath (1).

7. A low smoke zero halogen, flame retardant residential cable according to Claim 6, characterised in that: The flame-retardant ring (7) is made of polyethylene material added with aluminum hydroxide flame retardant, and the wear-resistant sleeve (6) is made of the same material as the outer sheath (1).

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